72269031241 has 9 divisors (see below), whose sum is σ = 79439458413. Its totient is φ = 65696431020.

The previous prime is 72269031229. The next prime is 72269031251. The reversal of 72269031241 is 14213096227.

The square root of 72269031241 is 268829.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 72269031241 - 2²⁵ = 72235476809 is a prime.

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 72269031241.

It is not an unprimeable number, because it can be changed into a prime (72269031251) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2944900 + ... + 2969338.

Almost surely, 2^72269031241 is an apocalyptic number.

72269031241 is the 268829-th square number.

72269031241 is the 134415-th centered octagonal number.

It is an amenable number.

72269031241 is a deficient number, since it is larger than the sum of its proper divisors (7170427172).

72269031241 is an frugal number, since it uses more digits than its factorization.

72269031241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48900 (or 24450 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 72269031241 in words is "seventy-two billion, two hundred sixty-nine million, thirty-one thousand, two hundred forty-one".