70016513 has 16 divisors (see below), whose sum is σ = 82220160. Its totient is φ = 58375296.

The previous prime is 70016503. The next prime is 70016519. The reversal of 70016513 is 31561007.

It is not a de Polignac number, because 70016513 - 2⁶ = 70016449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70016519) 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, 137303 + ... + 137811.

It is an arithmetic number, because the mean of its divisors is an integer number (5138760).

Almost surely, 2^70016513 is an apocalyptic number.

It is an amenable number.

70016513 is a deficient number, since it is larger than the sum of its proper divisors (12203647).

70016513 is a wasteful number, since it uses less digits than its factorization.

70016513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 70016513 is about 8367.5870476500. The cubic root of 70016513 is about 412.1609344730.

The spelling of 70016513 in words is "seventy million, sixteen thousand, five hundred thirteen".