70501931 has 2 divisors, whose sum is σ = 70501932. Its totient is φ = 70501930.

The previous prime is 70501903. The next prime is 70501957. The reversal of 70501931 is 13910507.

It is an a-pointer prime, because the next prime (70501957) can be obtained adding 70501931 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70501931 - 2²² = 66307627 is a prime.

It is a super-2 number, since 2×70501931² = 9941044549457522, 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 70501931.

It is not a weakly prime, because it can be changed into another prime (70501961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35250965 + 35250966.

It is an arithmetic number, because the mean of its divisors is an integer number (35250966).

Almost surely, 2^70501931 is an apocalyptic number.

70501931 is a deficient number, since it is larger than the sum of its proper divisors (1).

70501931 is an equidigital number, since it uses as much as digits as its factorization.

70501931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 70501931 is about 8396.5428004626. The cubic root of 70501931 is about 413.1112329297. Note that the first 3 decimals are identical.

The spelling of 70501931 in words is "seventy million, five hundred one thousand, nine hundred thirty-one".