731045057 has 8 divisors (see below), whose sum is σ = 738369984. Its totient is φ = 723755088.

The previous prime is 731045027. The next prime is 731045093. The reversal of 731045057 is 750540137.

731045057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 731045057 - 2¹⁰ = 731044033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731045017) 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, 34343 + ... + 51395.

It is an arithmetic number, because the mean of its divisors is an integer number (92296248).

Almost surely, 2^731045057 is an apocalyptic number.

It is an amenable number.

731045057 is a deficient number, since it is larger than the sum of its proper divisors (7324927).

731045057 is a wasteful number, since it uses less digits than its factorization.

731045057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17479.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 731045057 is about 27037.8449030244. The cubic root of 731045057 is about 900.8408015013.

The spelling of 731045057 in words is "seven hundred thirty-one million, forty-five thousand, fifty-seven".