31366130 has 16 divisors (see below), whose sum is σ = 56709720. Its totient is φ = 12490752.

The previous prime is 31366123. The next prime is 31366163. The reversal of 31366130 is 3166313.

It can be written as a sum of positive squares in 4 ways, for example, as 23687689 + 7678441 = 4867^2 + 2771^2 .

It is a super-2 number, since 2×31366130² = 1967668222353800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31366096 and 31366105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4559 + ... + 9138.

Almost surely, 2^31366130 is an apocalyptic number.

31366130 is a deficient number, since it is larger than the sum of its proper divisors (25343590).

31366130 is a wasteful number, since it uses less digits than its factorization.

31366130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13933.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 31366130 is about 5600.5472946847. The cubic root of 31366130 is about 315.3699525055.

The spelling of 31366130 in words is "thirty-one million, three hundred sixty-six thousand, one hundred thirty".