70004131 has 2 divisors, whose sum is σ = 70004132. Its totient is φ = 70004130.

The previous prime is 70004119. The next prime is 70004141. The reversal of 70004131 is 13140007.

It is a strong prime.

It is an emirp because it is prime and its reverse (13140007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70004131 - 2⁷ = 70004003 is a prime.

It is a super-2 number, since 2×70004131² = 9801156714130322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70004141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35002065 + 35002066.

It is an arithmetic number, because the mean of its divisors is an integer number (35002066).

Almost surely, 2^70004131 is an apocalyptic number.

70004131 is a deficient number, since it is larger than the sum of its proper divisors (1).

70004131 is an equidigital number, since it uses as much as digits as its factorization.

70004131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 70004131 is about 8366.8471361678. The cubic root of 70004131 is about 412.1366369783.

Adding to 70004131 its reverse (13140007), we get a palindrome (83144138).

The spelling of 70004131 in words is "seventy million, four thousand, one hundred thirty-one".