31134112 has 12 divisors (see below), whose sum is σ = 61295346. Its totient is φ = 15567040.

The previous prime is 31134101. The next prime is 31134113. The reversal of 31134112 is 21143113.

It can be written as a sum of positive squares in only one way, i.e., 21123216 + 10010896 = 4596^2 + 3164^2 .

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

It is not an unprimeable number, because it can be changed into a prime (31134113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486439 + ... + 486502.

Almost surely, 2^31134112 is an apocalyptic number.

31134112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31134112 is a deficient number, since it is larger than the sum of its proper divisors (30161234).

31134112 is an equidigital number, since it uses as much as digits as its factorization.

31134112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972951 (or 972943 counting only the distinct ones).

The product of its digits is 72, while the sum is 16.

The square root of 31134112 is about 5579.7949783124. The cubic root of 31134112 is about 314.5904208959.

Adding to 31134112 its reverse (21143113), we get a palindrome (52277225).

Subtracting from 31134112 its reverse (21143113), we obtain a palindrome (9990999).

It can be divided in two parts, 3113 and 4112, that added together give a square (7225 = 85²).

The spelling of 31134112 in words is "thirty-one million, one hundred thirty-four thousand, one hundred twelve".