70913113 has 4 divisors (see below), whose sum is σ = 70973748. Its totient is φ = 70852480.

The previous prime is 70913107. The next prime is 70913159. The reversal of 70913113 is 31131907.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19245769 + 51667344 = 4387^2 + 7188^2 .

It is a cyclic number.

It is not a de Polignac number, because 70913113 - 2⁵ = 70913081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70923113) 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 3 ways as a sum of consecutive naturals, for example, 28528 + ... + 30913.

It is an arithmetic number, because the mean of its divisors is an integer number (17743437).

Almost surely, 2^70913113 is an apocalyptic number.

It is an amenable number.

70913113 is a deficient number, since it is larger than the sum of its proper divisors (60635).

70913113 is a wasteful number, since it uses less digits than its factorization.

70913113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60634.

The product of its (nonzero) digits is 567, while the sum is 25.

The square root of 70913113 is about 8420.9923999491. The cubic root of 70913113 is about 413.9127936773.

The spelling of 70913113 in words is "seventy million, nine hundred thirteen thousand, one hundred thirteen".