31340132 has 24 divisors (see below), whose sum is σ = 56888832. Its totient is φ = 15106920.

The previous prime is 31340093. The next prime is 31340143. The reversal of 31340132 is 23104313.

It is a happy number.

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 31340132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119033 + ... + 119295.

It is an arithmetic number, because the mean of its divisors is an integer number (2370368).

Almost surely, 2^31340132 is an apocalyptic number.

It is an amenable number.

31340132 is a deficient number, since it is larger than the sum of its proper divisors (25548700).

31340132 is an equidigital number, since it uses as much as digits as its factorization.

31340132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 31340132 is about 5598.2257903732. The cubic root of 31340132 is about 315.2827963456.

Adding to 31340132 its reverse (23104313), we get a palindrome (54444445).

The spelling of 31340132 in words is "thirty-one million, three hundred forty thousand, one hundred thirty-two".