531176147413081 has 3 divisors (see below), whose sum is σ = 531176170460341. Its totient is φ = 531176124365822.

The previous prime is 531176147413069. The next prime is 531176147413099. The reversal of 531176147413081 is 180314741671135.

The square root of 531176147413081 is 23047259.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 531176147413081 - 2¹⁷ = 531176147282009 is a prime.

It is a super-2 number, since 2×531176147413081² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531176147413981) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11523630 + ... + 34570888.

Almost surely, 2^{531176147413081} is an apocalyptic number.

531176147413081 is the 23047259-th square number.

531176147413081 is the 11523630-th centered octagonal number.

It is an amenable number.

531176147413081 is a deficient number, since it is larger than the sum of its proper divisors (23047260).

531176147413081 is an frugal number, since it uses more digits than its factorization.

531176147413081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46094518 (or 23047259 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 531176147413081 in words is "five hundred thirty-one trillion, one hundred seventy-six billion, one hundred forty-seven million, four hundred thirteen thousand, eighty-one".