131672277 has 16 divisors (see below), whose sum is σ = 212804160. Its totient is φ = 79801200.

The previous prime is 131672257. The next prime is 131672291. The reversal of 131672277 is 772276131.

131672277 is a `hidden beast` number, since 1 + 316 + 72 + 277 = 666.

It is not a de Polignac number, because 131672277 - 2¹⁸ = 131410133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131672237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221374 + ... + 221967.

It is an arithmetic number, because the mean of its divisors is an integer number (13300260).

Almost surely, 2^131672277 is an apocalyptic number.

It is an amenable number.

131672277 is a deficient number, since it is larger than the sum of its proper divisors (81131883).

131672277 is a wasteful number, since it uses less digits than its factorization.

131672277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443361 (or 443355 counting only the distinct ones).

The product of its digits is 24696, while the sum is 36.

The square root of 131672277 is about 11474.8541167197. The cubic root of 131672277 is about 508.7426118413.

The spelling of 131672277 in words is "one hundred thirty-one million, six hundred seventy-two thousand, two hundred seventy-seven".