70534531 has 2 divisors, whose sum is σ = 70534532. Its totient is φ = 70534530.

The previous prime is 70534493. The next prime is 70534567. The reversal of 70534531 is 13543507.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70534531 - 2⁹ = 70534019 is a prime.

It is a super-2 number, since 2×70534531² = 9950240126779922, 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 70534531.

It is not a weakly prime, because it can be changed into another prime (70534591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35267265 + 35267266.

It is an arithmetic number, because the mean of its divisors is an integer number (35267266).

Almost surely, 2^70534531 is an apocalyptic number.

70534531 is a deficient number, since it is larger than the sum of its proper divisors (1).

70534531 is an equidigital number, since it uses as much as digits as its factorization.

70534531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 70534531 is about 8398.4838512674. The cubic root of 70534531 is about 413.1748971479.

The spelling of 70534531 in words is "seventy million, five hundred thirty-four thousand, five hundred thirty-one".