331140525140 has 48 divisors (see below), whose sum is σ = 736348611600. Its totient is φ = 124656556032.

The previous prime is 331140525137. The next prime is 331140525179. The reversal of 331140525140 is 41525041133.

It can be written as a sum of positive squares in 8 ways, for example, as 68508874564 + 262631650576 = 261742^2 + 512476^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8885666 + ... + 8922854.

It is an arithmetic number, because the mean of its divisors is an integer number (15340596075).

Almost surely, 2^331140525140 is an apocalyptic number.

It is an amenable number.

331140525140 is an abundant number, since it is smaller than the sum of its proper divisors (405208086460).

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

331140525140 is a wasteful number, since it uses less digits than its factorization.

331140525140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63404 (or 63402 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 331140525140 its reverse (41525041133), we get a palindrome (372665566273).

The spelling of 331140525140 in words is "three hundred thirty-one billion, one hundred forty million, five hundred twenty-five thousand, one hundred forty".