131525215552240 has 160 divisors (see below), whose sum is σ = 315444687247872. Its totient is φ = 50969210880000.

The previous prime is 131525215552219. The next prime is 131525215552243. The reversal of 131525215552240 is 42255512525131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131525215552243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293083230 + ... + 293531650.

Almost surely, 2^{131525215552240} is an apocalyptic number.

131525215552240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131525215552240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157722343623936).

131525215552240 is an abundant number, since it is smaller than the sum of its proper divisors (183919471695632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131525215552240 is a wasteful number, since it uses less digits than its factorization.

131525215552240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449099 (or 449093 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 43.

The spelling of 131525215552240 in words is "one hundred thirty-one trillion, five hundred twenty-five billion, two hundred fifteen million, five hundred fifty-two thousand, two hundred forty".