61540834 has 8 divisors (see below), whose sum is σ = 92367360. Its totient is φ = 30751716.

The previous prime is 61540819. The next prime is 61540837. The reversal of 61540834 is 43804516.

It is a happy number.

61540834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 61540796 and 61540805.

It is not an unprimeable number, because it can be changed into a prime (61540837) 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 3 ways as a sum of consecutive naturals, for example, 4794 + ... + 12085.

It is an arithmetic number, because the mean of its divisors is an integer number (11545920).

Almost surely, 2^61540834 is an apocalyptic number.

61540834 is a deficient number, since it is larger than the sum of its proper divisors (30826526).

61540834 is a wasteful number, since it uses less digits than its factorization.

61540834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18704.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 61540834 is about 7844.7966194160. The cubic root of 61540834 is about 394.8096802527.

The spelling of 61540834 in words is "sixty-one million, five hundred forty thousand, eight hundred thirty-four".