70958131 has 2 divisors, whose sum is σ = 70958132. Its totient is φ = 70958130.

The previous prime is 70958113. The next prime is 70958137. The reversal of 70958131 is 13185907.

It is a happy number.

Together with previous prime (70958113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70958131 - 2¹⁵ = 70925363 is a prime.

It is a super-2 number, since 2×70958131² = 10070112710026322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70958137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35479065 + 35479066.

It is an arithmetic number, because the mean of its divisors is an integer number (35479066).

Almost surely, 2^70958131 is an apocalyptic number.

70958131 is a deficient number, since it is larger than the sum of its proper divisors (1).

70958131 is an equidigital number, since it uses as much as digits as its factorization.

70958131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 70958131 is about 8423.6649387306. The cubic root of 70958131 is about 414.0003636799. Note that the first 3 decimals are identical.

The spelling of 70958131 in words is "seventy million, nine hundred fifty-eight thousand, one hundred thirty-one".