131525400545 has 16 divisors (see below), whose sum is σ = 196775664768. Its totient is φ = 81989859840.

The previous prime is 131525400533. The next prime is 131525400547. The reversal of 131525400545 is 545004525131.

It is not a de Polignac number, because 131525400545 - 2¹² = 131525396449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131525400547) 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, 170811824 + ... + 170812593.

It is an arithmetic number, because the mean of its divisors is an integer number (12298479048).

Almost surely, 2^131525400545 is an apocalyptic number.

It is an amenable number.

131525400545 is a deficient number, since it is larger than the sum of its proper divisors (65250264223).

131525400545 is a wasteful number, since it uses less digits than its factorization.

131525400545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341624440.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 131525400545 its reverse (545004525131), we get a palindrome (676529925676).

The spelling of 131525400545 in words is "one hundred thirty-one billion, five hundred twenty-five million, four hundred thousand, five hundred forty-five".