31214532 has 48 divisors (see below), whose sum is σ = 75373760. Its totient is φ = 10046592.

The previous prime is 31214531. The next prime is 31214591. The reversal of 31214532 is 23541213.

It is a junction number, because it is equal to n+sod(n) for n = 31214499 and 31214508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31214531) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 101523 + ... + 101829.

Almost surely, 2^31214532 is an apocalyptic number.

It is an amenable number.

31214532 is an abundant number, since it is smaller than the sum of its proper divisors (44159228).

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

31214532 is a wasteful number, since it uses less digits than its factorization.

31214532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580 (or 578 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 31214532 is about 5586.9966887407. The cubic root of 31214532 is about 314.8610523493.

Adding to 31214532 its reverse (23541213), we get a palindrome (54755745).

The spelling of 31214532 in words is "thirty-one million, two hundred fourteen thousand, five hundred thirty-two".