61256156 has 12 divisors (see below), whose sum is σ = 115444392. Its totient is φ = 28272048.

The previous prime is 61256137. The next prime is 61256159. The reversal of 61256156 is 65165216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61256159) 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, 588950 + ... + 589053.

It is an arithmetic number, because the mean of its divisors is an integer number (9620366).

Almost surely, 2^61256156 is an apocalyptic number.

It is an amenable number.

61256156 is a deficient number, since it is larger than the sum of its proper divisors (54188236).

61256156 is a wasteful number, since it uses less digits than its factorization.

61256156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178020 (or 1178018 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

The square root of 61256156 is about 7826.6312037811. The cubic root of 61256156 is about 394.1999637737.

The spelling of 61256156 in words is "sixty-one million, two hundred fifty-six thousand, one hundred fifty-six".