71497343131 has 8 divisors (see below), whose sum is σ = 71558000640. Its totient is φ = 71436716328.

The previous prime is 71497343111. The next prime is 71497343153. The reversal of 71497343131 is 13134379417.

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

It is a cyclic number.

It is not a de Polignac number, because 71497343131 - 2⁹ = 71497342619 is a prime.

It is a super-2 number, since 2×71497343131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71497343111) 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, 7139730 + ... + 7149736.

It is an arithmetic number, because the mean of its divisors is an integer number (8944750080).

Almost surely, 2^71497343131 is an apocalyptic number.

71497343131 is a deficient number, since it is larger than the sum of its proper divisors (60657509).

71497343131 is a wasteful number, since it uses less digits than its factorization.

71497343131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15353.

The product of its digits is 190512, while the sum is 43.

The spelling of 71497343131 in words is "seventy-one billion, four hundred ninety-seven million, three hundred forty-three thousand, one hundred thirty-one".