31168130 has 32 divisors (see below), whose sum is σ = 64399104. Its totient is φ = 10639296.

The previous prime is 31168117. The next prime is 31168141. The reversal of 31168130 is 3186113.

It is a junction number, because it is equal to n+sod(n) for n = 31168096 and 31168105.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17564 + ... + 19256.

It is an arithmetic number, because the mean of its divisors is an integer number (2012472).

Almost surely, 2^31168130 is an apocalyptic number.

31168130 is an abundant number, since it is smaller than the sum of its proper divisors (33230974).

31168130 is a wasteful number, since it uses less digits than its factorization.

31168130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 31168130 is about 5582.8424659845. The cubic root of 31168130 is about 314.7049559503.

The spelling of 31168130 in words is "thirty-one million, one hundred sixty-eight thousand, one hundred thirty".