70129013 has 2 divisors, whose sum is σ = 70129014. Its totient is φ = 70129012.

The previous prime is 70128997. The next prime is 70129021. The reversal of 70129013 is 31092107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54272689 + 15856324 = 7367^2 + 3982^2 .

It is a cyclic number.

It is not a de Polignac number, because 70129013 - 2⁴ = 70128997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70129013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70129613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35064506 + 35064507.

It is an arithmetic number, because the mean of its divisors is an integer number (35064507).

Almost surely, 2^70129013 is an apocalyptic number.

It is an amenable number.

70129013 is a deficient number, since it is larger than the sum of its proper divisors (1).

70129013 is an equidigital number, since it uses as much as digits as its factorization.

70129013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 70129013 is about 8374.3067175737. The cubic root of 70129013 is about 412.3815647743.

The spelling of 70129013 in words is "seventy million, one hundred twenty-nine thousand, thirteen".