31129914 has 8 divisors (see below), whose sum is σ = 62259840. Its totient is φ = 10376636.

The previous prime is 31129909. The next prime is 31129927. The reversal of 31129914 is 41992113.

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

31129914 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2594154 + ... + 2594165.

It is an arithmetic number, because the mean of its divisors is an integer number (7782480).

Almost surely, 2^31129914 is an apocalyptic number.

31129914 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31129914 is a wasteful number, since it uses less digits than its factorization.

31129914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5188324.

The product of its digits is 1944, while the sum is 30.

The square root of 31129914 is about 5579.4187869347. The cubic root of 31129914 is about 314.5762808861.

The spelling of 31129914 in words is "thirty-one million, one hundred twenty-nine thousand, nine hundred fourteen".