70129613 has 2 divisors, whose sum is σ = 70129614. Its totient is φ = 70129612.

The previous prime is 70129601. The next prime is 70129621. The reversal of 70129613 is 31692107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60808804 + 9320809 = 7798^2 + 3053^2 .

It is a cyclic number.

It is not a de Polignac number, because 70129613 - 2⁸ = 70129357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70129673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35064806 + 35064807.

It is an arithmetic number, because the mean of its divisors is an integer number (35064807).

Almost surely, 2^70129613 is an apocalyptic number.

It is an amenable number.

70129613 is a deficient number, since it is larger than the sum of its proper divisors (1).

70129613 is an equidigital number, since it uses as much as digits as its factorization.

70129613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 70129613 is about 8374.3425413581. The cubic root of 70129613 is about 412.3827408364.

The spelling of 70129613 in words is "seventy million, one hundred twenty-nine thousand, six hundred thirteen".