61031936 has 40 divisors (see below), whose sum is σ = 139373520. Its totient is φ = 26155008.

The previous prime is 61031923. The next prime is 61031939. The reversal of 61031936 is 63913016.

It is a junction number, because it is equal to n+sod(n) for n = 61031899 and 61031908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61031939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4931 + ... + 12098.

It is an arithmetic number, because the mean of its divisors is an integer number (3484338).

Almost surely, 2^61031936 is an apocalyptic number.

It is an amenable number.

61031936 is an abundant number, since it is smaller than the sum of its proper divisors (78341584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61031936 is an equidigital number, since it uses as much as digits as its factorization.

61031936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17054 (or 17038 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 61031936 is about 7812.2939012815. The cubic root of 61031936 is about 393.7184035787.

The spelling of 61031936 in words is "sixty-one million, thirty-one thousand, nine hundred thirty-six".