31945052 has 12 divisors (see below), whose sum is σ = 56213976. Its totient is φ = 15883920.

The previous prime is 31945051. The next prime is 31945063. The reversal of 31945052 is 25054913.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31945051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21338 + ... + 22785.

It is an arithmetic number, because the mean of its divisors is an integer number (4684498).

Almost surely, 2^31945052 is an apocalyptic number.

It is an amenable number.

31945052 is a deficient number, since it is larger than the sum of its proper divisors (24268924).

31945052 is a wasteful number, since it uses less digits than its factorization.

31945052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44308 (or 44306 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 31945052 is about 5651.9953998566. The cubic root of 31945052 is about 317.2983885482.

Adding to 31945052 its reverse (25054913), we get a palindrome (56999965).

The spelling of 31945052 in words is "thirty-one million, nine hundred forty-five thousand, fifty-two".