131274604145169 has 45 divisors (see below), whose sum is σ = 206969010968313. Its totient is φ = 82909038890808.

The previous prime is 131274604145149. The next prime is 131274604145233. The reversal of 131274604145169 is 961541406472131.

The square root of 131274604145169 is 11457513.

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

131274604145169 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 7 + 4 + 60 + 414 + 5 + 169 = 666.

It is not a de Polignac number, because 131274604145169 - 2⁵ = 131274604145137 is a prime.

It is a super-2 number, since 2×131274604145169² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131274604145149) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1959201222 + ... + 1959268224.

Almost surely, 2^{131274604145169} is an apocalyptic number.

131274604145169 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

131274604145169 is the 11457513-rd square number.

131274604145169 is the 5728757-th centered octagonal number.

It is an amenable number.

131274604145169 is a deficient number, since it is larger than the sum of its proper divisors (75694406823144).

131274604145169 is an frugal number, since it uses more digits than its factorization.

131274604145169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134056 (or 67025 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 131274604145169 in words is "one hundred thirty-one trillion, two hundred seventy-four billion, six hundred four million, one hundred forty-five thousand, one hundred sixty-nine".