31452985 has 16 divisors (see below), whose sum is σ = 38413440. Its totient is φ = 24720640.

The previous prime is 31452977. The next prime is 31453021. The reversal of 31452985 is 58925413.

It is not a de Polignac number, because 31452985 - 2³ = 31452977 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100980 + ... + 101290.

It is an arithmetic number, because the mean of its divisors is an integer number (2400840).

Almost surely, 2^31452985 is an apocalyptic number.

It is an amenable number.

31452985 is a deficient number, since it is larger than the sum of its proper divisors (6960455).

31452985 is a wasteful number, since it uses less digits than its factorization.

31452985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608.

The product of its digits is 43200, while the sum is 37.

The square root of 31452985 is about 5608.2960870482. The cubic root of 31452985 is about 315.6607780244.

The spelling of 31452985 in words is "thirty-one million, four hundred fifty-two thousand, nine hundred eighty-five".