61112931 has 8 divisors (see below), whose sum is σ = 88891584. Its totient is φ = 37038120.

The previous prime is 61112923. The next prime is 61112951. The reversal of 61112931 is 13921116.

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

It is not a de Polignac number, because 61112931 - 2³ = 61112923 is a prime.

It is a super-2 number, since 2×61112931² = 7469580670821522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61112951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925921 + ... + 925986.

It is an arithmetic number, because the mean of its divisors is an integer number (11111448).

Almost surely, 2^61112931 is an apocalyptic number.

61112931 is a deficient number, since it is larger than the sum of its proper divisors (27778653).

61112931 is a wasteful number, since it uses less digits than its factorization.

61112931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851921.

The product of its digits is 324, while the sum is 24.

The square root of 61112931 is about 7817.4759993236. The cubic root of 61112931 is about 393.8924934510.

The spelling of 61112931 in words is "sixty-one million, one hundred twelve thousand, nine hundred thirty-one".