572131237 has 4 divisors (see below), whose sum is σ = 582926220. Its totient is φ = 561336256.

The previous prime is 572131229. The next prime is 572131271. The reversal of 572131237 is 732131275.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 214505316 + 357625921 = 14646^2 + 18911^2 .

It is a cyclic number.

It is not a de Polignac number, because 572131237 - 2³ = 572131229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 572131199 and 572131208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572131337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5397412 + ... + 5397517.

It is an arithmetic number, because the mean of its divisors is an integer number (145731555).

Almost surely, 2^572131237 is an apocalyptic number.

It is an amenable number.

572131237 is a deficient number, since it is larger than the sum of its proper divisors (10794983).

572131237 is a wasteful number, since it uses less digits than its factorization.

572131237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10794982.

The product of its digits is 8820, while the sum is 31.

The square root of 572131237 is about 23919.2649761651. The cubic root of 572131237 is about 830.1665301892.

The spelling of 572131237 in words is "five hundred seventy-two million, one hundred thirty-one thousand, two hundred thirty-seven".