61534473 has 64 divisors (see below), whose sum is σ = 113885184. Its totient is φ = 28512000.

The previous prime is 61534469. The next prime is 61534477. The reversal of 61534473 is 37443516.

61534473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61534469) and next prime (61534477).

It is not a de Polignac number, because 61534473 - 2² = 61534469 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (61534477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 92763 + ... + 93423.

It is an arithmetic number, because the mean of its divisors is an integer number (1779456).

Almost surely, 2^61534473 is an apocalyptic number.

It is an amenable number.

61534473 is a deficient number, since it is larger than the sum of its proper divisors (52350711).

61534473 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (61534472) it forms an eRAP, since the sums of their prime factors are consecutive (725 and 726).

61534473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726.

The product of its digits is 30240, while the sum is 33.

The square root of 61534473 is about 7844.3911809649. The cubic root of 61534473 is about 394.7960769764.

61534473 divided by its sum of digits (33) gives a palindrome (1864681).

Adding to 61534473 its reverse (37443516), we get a palindrome (98977989).

The spelling of 61534473 in words is "sixty-one million, five hundred thirty-four thousand, four hundred seventy-three".