70164431 has 2 divisors, whose sum is σ = 70164432. Its totient is φ = 70164430.

The previous prime is 70164383. The next prime is 70164443. The reversal of 70164431 is 13446107.

It is a strong prime.

It is an emirp because it is prime and its reverse (13446107) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70164431 - 2²⁶ = 3055567 is a prime.

It is a super-2 number, since 2×70164431² = 9846094755107522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70164431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70164481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35082215 + 35082216.

It is an arithmetic number, because the mean of its divisors is an integer number (35082216).

Almost surely, 2^70164431 is an apocalyptic number.

70164431 is a deficient number, since it is larger than the sum of its proper divisors (1).

70164431 is an equidigital number, since it uses as much as digits as its factorization.

70164431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 70164431 is about 8376.4211331570. The cubic root of 70164431 is about 412.4509762370.

The spelling of 70164431 in words is "seventy million, one hundred sixty-four thousand, four hundred thirty-one".