131528258177 has 16 divisors (see below), whose sum is σ = 137538196992. Its totient is φ = 125673905280.

The previous prime is 131528258131. The next prime is 131528258237. The reversal of 131528258177 is 771852825131.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131528258177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131528258107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336848 + ... + 613614.

It is an arithmetic number, because the mean of its divisors is an integer number (8596137312).

Almost surely, 2^131528258177 is an apocalyptic number.

It is an amenable number.

131528258177 is a deficient number, since it is larger than the sum of its proper divisors (6009938815).

131528258177 is a wasteful number, since it uses less digits than its factorization.

131528258177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277048.

The product of its digits is 940800, while the sum is 50.

The spelling of 131528258177 in words is "one hundred thirty-one billion, five hundred twenty-eight million, two hundred fifty-eight thousand, one hundred seventy-seven".