31420108 has 24 divisors (see below), whose sum is σ = 57103200. Its totient is φ = 15109248.

The previous prime is 31420099. The next prime is 31420133. The reversal of 31420108 is 80102413.

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, 50616 + ... + 51232.

It is an arithmetic number, because the mean of its divisors is an integer number (2379300).

Almost surely, 2^31420108 is an apocalyptic number.

It is an amenable number.

31420108 is a deficient number, since it is larger than the sum of its proper divisors (25683092).

31420108 is a wasteful number, since it uses less digits than its factorization.

31420108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 31420108 is about 5605.3642165340. The cubic root of 31420108 is about 315.5507556376.

The spelling of 31420108 in words is "thirty-one million, four hundred twenty thousand, one hundred eight".