151129134184681 has 3 divisors (see below), whose sum is σ = 151129146478141. Its totient is φ = 151129121891222.

The previous prime is 151129134184661. The next prime is 151129134184709. The reversal of 151129134184681 is 186481431921151.

The square root of 151129134184681 is 12293459.

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 151129134184681 - 2²¹ = 151129132087529 is a prime.

It is a super-2 number, since 2×151129134184681² (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 (151129134184601) 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, 6146730 + ... + 18440188.

Almost surely, 2^{151129134184681} is an apocalyptic number.

151129134184681 is the 12293459-th square number.

151129134184681 is the 6146730-th centered octagonal number.

It is an amenable number.

151129134184681 is a deficient number, since it is larger than the sum of its proper divisors (12293460).

151129134184681 is an frugal number, since it uses more digits than its factorization.

151129134184681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24586918 (or 12293459 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 55.

The spelling of 151129134184681 in words is "one hundred fifty-one trillion, one hundred twenty-nine billion, one hundred thirty-four million, one hundred eighty-four thousand, six hundred eighty-one".