70457131 has 2 divisors, whose sum is σ = 70457132. Its totient is φ = 70457130.

The previous prime is 70457083. The next prime is 70457137. The reversal of 70457131 is 13175407.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70457131 - 2⁷ = 70457003 is a prime.

It is a super-2 number, since 2×70457131² = 9928414617502322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70457131.

It is not a weakly prime, because it can be changed into another prime (70457137) 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, 35228565 + 35228566.

It is an arithmetic number, because the mean of its divisors is an integer number (35228566).

Almost surely, 2^70457131 is an apocalyptic number.

70457131 is a deficient number, since it is larger than the sum of its proper divisors (1).

70457131 is an equidigital number, since it uses as much as digits as its factorization.

70457131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 70457131 is about 8393.8746118822. The cubic root of 70457131 is about 413.0237114274.

The spelling of 70457131 in words is "seventy million, four hundred fifty-seven thousand, one hundred thirty-one".