70345057 has 2 divisors, whose sum is σ = 70345058. Its totient is φ = 70345056.

The previous prime is 70345021. The next prime is 70345081. The reversal of 70345057 is 75054307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55935441 + 14409616 = 7479^2 + 3796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70345057 is a prime.

It is not a weakly prime, because it can be changed into another prime (70345007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35172528 + 35172529.

It is an arithmetic number, because the mean of its divisors is an integer number (35172529).

Almost surely, 2^70345057 is an apocalyptic number.

It is an amenable number.

70345057 is a deficient number, since it is larger than the sum of its proper divisors (1).

70345057 is an equidigital number, since it uses as much as digits as its factorization.

70345057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 70345057 is about 8387.1960153558. The cubic root of 70345057 is about 412.8046004867.

The spelling of 70345057 in words is "seventy million, three hundred forty-five thousand, fifty-seven".