931294013 has 8 divisors (see below), whose sum is σ = 1009322328. Its totient is φ = 854178624.

The previous prime is 931294009. The next prime is 931294031. The reversal of 931294013 is 310492139.

It can be written as a sum of positive squares in 4 ways, for example, as 139546969 + 791747044 = 11813^2 + 28138^2 .

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

It is not a de Polignac number, because 931294013 - 2² = 931294009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (931294003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226106 + ... + 230187.

It is an arithmetic number, because the mean of its divisors is an integer number (126165291).

Almost surely, 2^931294013 is an apocalyptic number.

It is an amenable number.

931294013 is a deficient number, since it is larger than the sum of its proper divisors (78028315).

931294013 is a wasteful number, since it uses less digits than its factorization.

931294013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456463.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 931294013 is about 30517.1101679042. The cubic root of 931294013 is about 976.5525168898.

The spelling of 931294013 in words is "nine hundred thirty-one million, two hundred ninety-four thousand, thirteen".