131537572 has 6 divisors (see below), whose sum is σ = 230190758. Its totient is φ = 65768784.

The previous prime is 131537569. The next prime is 131537599. The reversal of 131537572 is 275735131.

It can be written as a sum of positive squares in only one way, i.e., 113081956 + 18455616 = 10634^2 + 4296^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16442193 + ... + 16442200.

Almost surely, 2^131537572 is an apocalyptic number.

It is an amenable number.

131537572 is a deficient number, since it is larger than the sum of its proper divisors (98653186).

131537572 is a wasteful number, since it uses less digits than its factorization.

131537572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32884397 (or 32884395 counting only the distinct ones).

The product of its digits is 22050, while the sum is 34.

The square root of 131537572 is about 11468.9830412291. The cubic root of 131537572 is about 508.5690659289.

The spelling of 131537572 in words is "one hundred thirty-one million, five hundred thirty-seven thousand, five hundred seventy-two".