70357139 has 2 divisors, whose sum is σ = 70357140. Its totient is φ = 70357138.

The previous prime is 70357123. The next prime is 70357151. The reversal of 70357139 is 93175307.

It is a strong prime.

It is an emirp because it is prime and its reverse (93175307) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70357139 - 2⁴ = 70357123 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 70357099 and 70357108.

It is not a weakly prime, because it can be changed into another prime (70357039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35178569 + 35178570.

It is an arithmetic number, because the mean of its divisors is an integer number (35178570).

Almost surely, 2^70357139 is an apocalyptic number.

70357139 is a deficient number, since it is larger than the sum of its proper divisors (1).

70357139 is an equidigital number, since it uses as much as digits as its factorization.

70357139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 70357139 is about 8387.9162489858. The cubic root of 70357139 is about 412.8282326597.

The spelling of 70357139 in words is "seventy million, three hundred fifty-seven thousand, one hundred thirty-nine".