70045913 has 24 divisors (see below), whose sum is σ = 86246208. Its totient is φ = 55699488.

The previous prime is 70045901. The next prime is 70045919. The reversal of 70045913 is 31954007.

It is not a de Polignac number, because 70045913 - 2⁴ = 70045897 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 (70045919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133670 + ... + 134192.

It is an arithmetic number, because the mean of its divisors is an integer number (3593592).

Almost surely, 2^70045913 is an apocalyptic number.

It is an amenable number.

70045913 is a deficient number, since it is larger than the sum of its proper divisors (16200295).

70045913 is a wasteful number, since it uses less digits than its factorization.

70045913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 70045913 is about 8369.3436421263. The cubic root of 70045913 is about 412.2186153223.

The spelling of 70045913 in words is "seventy million, forty-five thousand, nine hundred thirteen".