74068531 has 2 divisors, whose sum is σ = 74068532. Its totient is φ = 74068530.

The previous prime is 74068529. The next prime is 74068537. The reversal of 74068531 is 13586047.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74068531 - 2¹ = 74068529 is a prime.

It is a super-2 number, since 2×74068531² = 10972294568995922, which contains 22 as substring.

Together with 74068529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (74068537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37034265 + 37034266.

It is an arithmetic number, because the mean of its divisors is an integer number (37034266).

Almost surely, 2^74068531 is an apocalyptic number.

74068531 is a deficient number, since it is larger than the sum of its proper divisors (1).

74068531 is an equidigital number, since it uses as much as digits as its factorization.

74068531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 74068531 is about 8606.3076287105. The cubic root of 74068531 is about 419.9632072834.

The spelling of 74068531 in words is "seventy-four million, sixty-eight thousand, five hundred thirty-one".