71074531 has 8 divisors (see below), whose sum is σ = 80907264. Its totient is φ = 61803720.

The previous prime is 71074529. The next prime is 71074559. The reversal of 71074531 is 13547017.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71074531 - 2¹ = 71074529 is a prime.

It is a super-2 number, since 2×71074531² = 10103177913739922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71074531.

It is not an unprimeable number, because it can be changed into a prime (71074561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140211 + ... + 140716.

It is an arithmetic number, because the mean of its divisors is an integer number (10113408).

Almost surely, 2^71074531 is an apocalyptic number.

71074531 is a deficient number, since it is larger than the sum of its proper divisors (9832733).

71074531 is a wasteful number, since it uses less digits than its factorization.

71074531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280961.

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

The square root of 71074531 is about 8430.5712143365. The cubic root of 71074531 is about 414.2266159570.

The spelling of 71074531 in words is "seventy-one million, seventy-four thousand, five hundred thirty-one".