31412745 has 64 divisors (see below), whose sum is σ = 68759040. Its totient is φ = 13250304.

The previous prime is 31412737. The next prime is 31412767. The reversal of 31412745 is 54721413.

It is not a de Polignac number, because 31412745 - 2³ = 31412737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11007 + ... + 13563.

It is an arithmetic number, because the mean of its divisors is an integer number (1074360).

Almost surely, 2^31412745 is an apocalyptic number.

31412745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31412745 is an abundant number, since it is smaller than the sum of its proper divisors (37346295).

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

31412745 is a wasteful number, since it uses less digits than its factorization.

31412745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591 (or 2585 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 31412745 is about 5604.7073964659. The cubic root of 31412745 is about 315.5261049508.

It can be divided in two parts, 3141 and 2745, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 31412745 in words is "thirty-one million, four hundred twelve thousand, seven hundred forty-five".