31068534 has 32 divisors (see below), whose sum is σ = 74753280. Its totient is φ = 8409312.

The previous prime is 31068517. The next prime is 31068563. The reversal of 31068534 is 43586013.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 18669 + ... + 20264.

It is an arithmetic number, because the mean of its divisors is an integer number (2336040).

Almost surely, 2^31068534 is an apocalyptic number.

31068534 is an abundant number, since it is smaller than the sum of its proper divisors (43684746).

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

31068534 is a wasteful number, since it uses less digits than its factorization.

31068534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38964.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 31068534 is about 5573.9154998977. The cubic root of 31068534 is about 314.3693909624.

The spelling of 31068534 in words is "thirty-one million, sixty-eight thousand, five hundred thirty-four".