131140140 has 48 divisors (see below), whose sum is σ = 376155360. Its totient is φ = 34117120.

The previous prime is 131140133. The next prime is 131140151. The reversal of 131140140 is 41041131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24195 + ... + 29114.

It is an arithmetic number, because the mean of its divisors is an integer number (7836570).

Almost surely, 2^131140140 is an apocalyptic number.

131140140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131140140 is an abundant number, since it is smaller than the sum of its proper divisors (245015220).

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

131140140 is a wasteful number, since it uses less digits than its factorization.

131140140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53362 (or 53360 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 131140140 is about 11451.6435501634. The cubic root of 131140140 is about 508.0563466959.

Adding to 131140140 its reverse (41041131), we get a palindrome (172181271).

Subtracting from 131140140 its reverse (41041131), we obtain a palindrome (90099009).

The spelling of 131140140 in words is "one hundred thirty-one million, one hundred forty thousand, one hundred forty".