76182072121 has 3 divisors (see below), whose sum is σ = 76182348133. Its totient is φ = 76181796110.

The previous prime is 76182072073. The next prime is 76182072157. The reversal of 76182072121 is 12127028167.

The square root of 76182072121 is 276011.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12127028167 = 31 ⋅391194457.

It is not a de Polignac number, because 76182072121 - 2²⁵ = 76148517689 is a prime.

It is a super-2 number, since 2×76182072121² (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 (76182070121) 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, 138006 + ... + 414016.

Almost surely, 2^76182072121 is an apocalyptic number.

76182072121 is the 276011-st square number.

76182072121 is the 138006-th centered octagonal number.

It is an amenable number.

76182072121 is a deficient number, since it is larger than the sum of its proper divisors (276012).

76182072121 is an frugal number, since it uses more digits than its factorization.

76182072121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552022 (or 276011 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

The spelling of 76182072121 in words is "seventy-six billion, one hundred eighty-two million, seventy-two thousand, one hundred twenty-one".