61935231 has 16 divisors (see below), whose sum is σ = 87143040. Its totient is φ = 39019680.

The previous prime is 61935227. The next prime is 61935257. The reversal of 61935231 is 13253916.

It is not a de Polignac number, because 61935231 - 2² = 61935227 is a prime.

It is a super-2 number, since 2×61935231² = 7671945678046722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61935221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26881 + ... + 29093.

It is an arithmetic number, because the mean of its divisors is an integer number (5446440).

Almost surely, 2^61935231 is an apocalyptic number.

61935231 is a deficient number, since it is larger than the sum of its proper divisors (25207809).

61935231 is a wasteful number, since it uses less digits than its factorization.

61935231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726.

The product of its digits is 4860, while the sum is 30.

The square root of 61935231 is about 7869.8939637075. The cubic root of 61935231 is about 395.6512910759.

The spelling of 61935231 in words is "sixty-one million, nine hundred thirty-five thousand, two hundred thirty-one".