31214032 has 20 divisors (see below), whose sum is σ = 61619940. Its totient is φ = 15312128.

The previous prime is 31214021. The next prime is 31214033. The reversal of 31214032 is 23041213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17106496 + 14107536 = 4136^2 + 3756^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 31213997 and 31214015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31214033) 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, 17557 + ... + 19252.

It is an arithmetic number, because the mean of its divisors is an integer number (3080997).

Almost surely, 2^31214032 is an apocalyptic number.

It is an amenable number.

31214032 is a deficient number, since it is larger than the sum of its proper divisors (30405908).

31214032 is a wasteful number, since it uses less digits than its factorization.

31214032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36870 (or 36864 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 31214032 is about 5586.9519418015. The cubic root of 31214032 is about 314.8593711733.

Adding to 31214032 its reverse (23041213), we get a palindrome (54255245).

The spelling of 31214032 in words is "thirty-one million, two hundred fourteen thousand, thirty-two".