31268013 has 8 divisors (see below), whose sum is σ = 47646528. Its totient is φ = 17867424.

The previous prime is 31268011. The next prime is 31268059. The reversal of 31268013 is 31086213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31268013 - 2¹ = 31268011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31268011) 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, 744456 + ... + 744497.

It is an arithmetic number, because the mean of its divisors is an integer number (5955816).

Almost surely, 2^31268013 is an apocalyptic number.

It is an amenable number.

31268013 is a deficient number, since it is larger than the sum of its proper divisors (16378515).

31268013 is a wasteful number, since it uses less digits than its factorization.

31268013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488963.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 31268013 is about 5591.7808433450. The cubic root of 31268013 is about 315.0407707369.

The spelling of 31268013 in words is "thirty-one million, two hundred sixty-eight thousand, thirteen".