31372106 has 12 divisors (see below), whose sum is σ = 49990038. Its totient is φ = 14763072.

The previous prime is 31372051. The next prime is 31372111. The reversal of 31372106 is 60127313.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 28783225 + 2588881 = 5365^2 + 1609^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26561 + ... + 27716.

Almost surely, 2^31372106 is an apocalyptic number.

31372106 is a deficient number, since it is larger than the sum of its proper divisors (18617932).

31372106 is a wasteful number, since it uses less digits than its factorization.

31372106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54313 (or 54296 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 31372106 is about 5601.0807885622. The cubic root of 31372106 is about 315.3899797468.

Adding to 31372106 its reverse (60127313), we get a palindrome (91499419).

The spelling of 31372106 in words is "thirty-one million, three hundred seventy-two thousand, one hundred six".