61454073 has 4 divisors (see below), whose sum is σ = 81938768. Its totient is φ = 40969380.

The previous prime is 61454027. The next prime is 61454093. The reversal of 61454073 is 37045416.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 61454073 - 2¹² = 61449977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61454073.

It is not an unprimeable number, because it can be changed into a prime (61454093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10242343 + ... + 10242348.

It is an arithmetic number, because the mean of its divisors is an integer number (20484692).

Almost surely, 2^61454073 is an apocalyptic number.

It is an amenable number.

61454073 is a deficient number, since it is larger than the sum of its proper divisors (20484695).

61454073 is a wasteful number, since it uses less digits than its factorization.

61454073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20484694.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 61454073 is about 7839.2648252244. The cubic root of 61454073 is about 394.6240571993.

Adding to 61454073 its reverse (37045416), we get a palindrome (98499489).

The spelling of 61454073 in words is "sixty-one million, four hundred fifty-four thousand, seventy-three".