30914631 has 12 divisors (see below), whose sum is σ = 48714120. Its totient is φ = 18736080.

The previous prime is 30914623. The next prime is 30914641. The reversal of 30914631 is 13641903.

It is not a de Polignac number, because 30914631 - 2³ = 30914623 is a prime.

It is a super-2 number, since 2×30914631² = 1911428819732322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30914595 and 30914604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30914641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156036 + ... + 156233.

It is an arithmetic number, because the mean of its divisors is an integer number (4059510).

Almost surely, 2^30914631 is an apocalyptic number.

30914631 is a deficient number, since it is larger than the sum of its proper divisors (17799489).

30914631 is a wasteful number, since it uses less digits than its factorization.

30914631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312286 (or 312283 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 30914631 is about 5560.0927150543. The cubic root of 30914631 is about 313.8494382780.

The spelling of 30914631 in words is "thirty million, nine hundred fourteen thousand, six hundred thirty-one".