70144013 has 2 divisors, whose sum is σ = 70144014. Its totient is φ = 70144012.

The previous prime is 70144003. The next prime is 70144027. The reversal of 70144013 is 31044107.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60171049 + 9972964 = 7757^2 + 3158^2 .

It is a cyclic number.

It is not a de Polignac number, because 70144013 - 2²⁰ = 69095437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70144003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35072006 + 35072007.

It is an arithmetic number, because the mean of its divisors is an integer number (35072007).

Almost surely, 2^70144013 is an apocalyptic number.

It is an amenable number.

70144013 is a deficient number, since it is larger than the sum of its proper divisors (1).

70144013 is an equidigital number, since it uses as much as digits as its factorization.

70144013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 70144013 is about 8375.2022662142. The cubic root of 70144013 is about 412.4109643158.

The spelling of 70144013 in words is "seventy million, one hundred forty-four thousand, thirteen".