70371313 has 16 divisors (see below), whose sum is σ = 77490000. Its totient is φ = 63608832.

The previous prime is 70371289. The next prime is 70371317. The reversal of 70371313 is 31317307.

It can be written as a sum of positive squares in 8 ways, for example, as 17707264 + 52664049 = 4208^2 + 7257^2 .

It is a de Polignac number, because none of the positive numbers 2^k-70371313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70371317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171853 + ... + 172261.

It is an arithmetic number, because the mean of its divisors is an integer number (4843125).

Almost surely, 2^70371313 is an apocalyptic number.

It is an amenable number.

70371313 is a deficient number, since it is larger than the sum of its proper divisors (7118687).

70371313 is a wasteful number, since it uses less digits than its factorization.

70371313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804.

The product of its (nonzero) digits is 1323, while the sum is 25.

The square root of 70371313 is about 8388.7611123455. The cubic root of 70371313 is about 412.8559532983.

The spelling of 70371313 in words is "seventy million, three hundred seventy-one thousand, three hundred thirteen".