131755144 has 16 divisors (see below), whose sum is σ = 247193100.
Its totient is φ = 65836992.
The previous prime is 131755123. The next prime is 131755189. The reversal of 131755144 is 441557131.
It can be written as a sum of positive squares in 2 ways, for example, as 91584900 + 40170244 = 9570^2 + 6338^2
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12174 + ... + 20290.
Almost surely, 2131755144 is an apocalyptic number.
It is an amenable number.
131755144 is a deficient number, since it is larger than the sum of its proper divisors (115437956).
131755144 is a wasteful number, since it uses less digits than its factorization.
131755144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10152 (or 10148 counting only the distinct ones).
The product of its digits is 8400, while the sum is 31.
The square root of 131755144 is about 11478.4643572213.
The cubic root of 131755144 is about 508.8493139609.
The spelling of 131755144 in words is "one hundred thirty-one million, seven hundred fifty-five thousand, one hundred forty-four".