131525971377 has 8 divisors (see below), whose sum is σ = 176347671840. Its totient is φ = 87194125920.

The previous prime is 131525971349. The next prime is 131525971387. The reversal of 131525971377 is 773179525131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131525971377 - 2⁷ = 131525971249 is a prime.

It is a super-3 number, since 3×131525971377³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (131525971307) 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, 122463124 + ... + 122464197.

It is an arithmetic number, because the mean of its divisors is an integer number (22043458980).

Almost surely, 2^131525971377 is an apocalyptic number.

It is an amenable number.

131525971377 is a deficient number, since it is larger than the sum of its proper divisors (44821700463).

131525971377 is a wasteful number, since it uses less digits than its factorization.

131525971377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244927503.

The product of its digits is 1389150, while the sum is 51.

The spelling of 131525971377 in words is "one hundred thirty-one billion, five hundred twenty-five million, nine hundred seventy-one thousand, three hundred seventy-seven".