31126068 has 18 divisors (see below), whose sum is σ = 78679874. Its totient is φ = 10375344.

The previous prime is 31126063. The next prime is 31126091. The reversal of 31126068 is 86062113.

It can be written as a sum of positive squares in only one way, i.e., 15586704 + 15539364 = 3948^2 + 3942^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31126063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 432271 + ... + 432342.

Almost surely, 2^31126068 is an apocalyptic number.

It is an amenable number.

31126068 is an abundant number, since it is smaller than the sum of its proper divisors (47553806).

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

31126068 is a wasteful number, since it uses less digits than its factorization.

31126068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864623 (or 864618 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 31126068 is about 5579.0741167330. The cubic root of 31126068 is about 314.5633253925.

It can be divided in two parts, 3112 and 6068, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 31126068 in words is "thirty-one million, one hundred twenty-six thousand, sixty-eight".