131175140 has 24 divisors (see below), whose sum is σ = 276271800. Its totient is φ = 52316928.

The previous prime is 131175139. The next prime is 131175151. The reversal of 131175140 is 41571131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37356544 + 93818596 = 6112^2 + 9686^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2417 + ... + 16376.

It is an arithmetic number, because the mean of its divisors is an integer number (11511325).

Almost surely, 2^131175140 is an apocalyptic number.

131175140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131175140 is an abundant number, since it is smaller than the sum of its proper divisors (145096660).

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

131175140 is a wasteful number, since it uses less digits than its factorization.

131175140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19151 (or 19149 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 131175140 is about 11453.1716131384. The cubic root of 131175140 is about 508.1015410720.

The spelling of 131175140 in words is "one hundred thirty-one million, one hundred seventy-five thousand, one hundred forty".