731357013 has 16 divisors (see below), whose sum is σ = 1031878656. Its totient is φ = 459800880.

The previous prime is 731356963. The next prime is 731357021. The reversal of 731357013 is 310753137.

It is not a de Polignac number, because 731357013 - 2¹² = 731352917 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 (731357213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69745 + ... + 79542.

It is an arithmetic number, because the mean of its divisors is an integer number (64492416).

Almost surely, 2^731357013 is an apocalyptic number.

It is an amenable number.

731357013 is a deficient number, since it is larger than the sum of its proper divisors (300521643).

731357013 is a wasteful number, since it uses less digits than its factorization.

731357013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149384.

The product of its (nonzero) digits is 6615, while the sum is 30.

The square root of 731357013 is about 27043.6131646642. The cubic root of 731357013 is about 900.9689207039.

The spelling of 731357013 in words is "seven hundred thirty-one million, three hundred fifty-seven thousand, thirteen".