131727172 has 6 divisors (see below), whose sum is σ = 230522558. Its totient is φ = 65863584.

The previous prime is 131727143. The next prime is 131727173. The reversal of 131727172 is 271727131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 129367876 + 2359296 = 11374^2 + 1536^2 .

It is not an unprimeable number, because it can be changed into a prime (131727173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16465893 + ... + 16465900.

Almost surely, 2^131727172 is an apocalyptic number.

It is an amenable number.

131727172 is a deficient number, since it is larger than the sum of its proper divisors (98795386).

131727172 is a wasteful number, since it uses less digits than its factorization.

131727172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32931797 (or 32931795 counting only the distinct ones).

The product of its digits is 4116, while the sum is 31.

The square root of 131727172 is about 11477.2458368722. The cubic root of 131727172 is about 508.8133013495.

The spelling of 131727172 in words is "one hundred thirty-one million, seven hundred twenty-seven thousand, one hundred seventy-two".