31396534 has 16 divisors (see below), whose sum is σ = 50843520. Its totient is φ = 14454720.

The previous prime is 31396513. The next prime is 31396537. The reversal of 31396534 is 43569313.

It is a self number, because there is not a number n which added to its sum of digits gives 31396534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31396537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11194 + ... + 13714.

It is an arithmetic number, because the mean of its divisors is an integer number (3177720).

Almost surely, 2^31396534 is an apocalyptic number.

31396534 is a deficient number, since it is larger than the sum of its proper divisors (19446986).

31396534 is a wasteful number, since it uses less digits than its factorization.

31396534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015.

The product of its digits is 29160, while the sum is 34.

The square root of 31396534 is about 5603.2610148020. The cubic root of 31396534 is about 315.4718183459.

The spelling of 31396534 in words is "thirty-one million, three hundred ninety-six thousand, five hundred thirty-four".