31214052 has 24 divisors (see below), whose sum is σ = 80925600. Its totient is φ = 10404648.

The previous prime is 31214041. The next prime is 31214069. The reversal of 31214052 is 25041213.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 7 ways as a sum of consecutive naturals, for example, 144402 + ... + 144617.

It is an arithmetic number, because the mean of its divisors is an integer number (3371900).

Almost surely, 2^31214052 is an apocalyptic number.

It is an amenable number.

31214052 is an abundant number, since it is smaller than the sum of its proper divisors (49711548).

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

31214052 is a wasteful number, since it uses less digits than its factorization.

31214052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289032 (or 289024 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 31214052 is about 5586.9537316860. The cubic root of 31214052 is about 314.8594384207.

Adding to 31214052 its reverse (25041213), we get a palindrome (56255265).

The spelling of 31214052 in words is "thirty-one million, two hundred fourteen thousand, fifty-two".