72531033534131 has 8 divisors (see below), whose sum is σ = 72757323360000. Its totient is φ = 72304878450760.

The previous prime is 72531033534097. The next prime is 72531033534181. The reversal of 72531033534131 is 13143533013527.

It is a happy number.

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 72531033534131 - 2¹⁰ = 72531033533107 is a prime.

It is a super-2 number, since 2×72531033534131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72531033534181) 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, 32607305 + ... + 34760586.

It is an arithmetic number, because the mean of its divisors is an integer number (9094665420000).

Almost surely, 2^{72531033534131} is an apocalyptic number.

72531033534131 is a deficient number, since it is larger than the sum of its proper divisors (226289825869).

72531033534131 is a wasteful number, since it uses less digits than its factorization.

72531033534131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67371249.

The product of its (nonzero) digits is 340200, while the sum is 41.

Adding to 72531033534131 its reverse (13143533013527), we get a palindrome (85674566547658).

The spelling of 72531033534131 in words is "seventy-two trillion, five hundred thirty-one billion, thirty-three million, five hundred thirty-four thousand, one hundred thirty-one".