70395139 has 2 divisors, whose sum is σ = 70395140. Its totient is φ = 70395138.

The previous prime is 70395119. The next prime is 70395163. The reversal of 70395139 is 93159307.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70395139 - 2⁵ = 70395107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70395098 and 70395107.

It is not a weakly prime, because it can be changed into another prime (70395109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35197569 + 35197570.

It is an arithmetic number, because the mean of its divisors is an integer number (35197570).

Almost surely, 2^70395139 is an apocalyptic number.

70395139 is a deficient number, since it is larger than the sum of its proper divisors (1).

70395139 is an equidigital number, since it uses as much as digits as its factorization.

70395139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25515, while the sum is 37.

The square root of 70395139 is about 8390.1811065078. The cubic root of 70395139 is about 412.9025423395.

The spelling of 70395139 in words is "seventy million, three hundred ninety-five thousand, one hundred thirty-nine".