131256452 has 6 divisors (see below), whose sum is σ = 229698798. Its totient is φ = 65628224.

The previous prime is 131256443. The next prime is 131256467. The reversal of 131256452 is 254652131.

It can be written as a sum of positive squares in only one way, i.e., 66357316 + 64899136 = 8146^2 + 8056^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16407053 + ... + 16407060.

It is an arithmetic number, because the mean of its divisors is an integer number (38283133).

Almost surely, 2^131256452 is an apocalyptic number.

It is an amenable number.

131256452 is a deficient number, since it is larger than the sum of its proper divisors (98442346).

131256452 is a wasteful number, since it uses less digits than its factorization.

131256452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32814117 (or 32814115 counting only the distinct ones).

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

The square root of 131256452 is about 11456.7208222947. The cubic root of 131256452 is about 508.2065056225.

The spelling of 131256452 in words is "one hundred thirty-one million, two hundred fifty-six thousand, four hundred fifty-two".