70731013 has 8 divisors (see below), whose sum is σ = 73084032. Its totient is φ = 68401296.

The previous prime is 70730993. The next prime is 70731019. The reversal of 70731013 is 31013707.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70731013 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 (70731019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456 + ... + 11902.

It is an arithmetic number, because the mean of its divisors is an integer number (9135504).

Almost surely, 2^70731013 is an apocalyptic number.

It is an amenable number.

70731013 is a deficient number, since it is larger than the sum of its proper divisors (2353019).

70731013 is a wasteful number, since it uses less digits than its factorization.

70731013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11651.

The product of its (nonzero) digits is 441, while the sum is 22.

The square root of 70731013 is about 8410.1731848993. The cubic root of 70731013 is about 413.5581901033.

The spelling of 70731013 in words is "seventy million, seven hundred thirty-one thousand, thirteen".