131170287 has 16 divisors (see below), whose sum is σ = 178305120. Its totient is φ = 85757952.

The previous prime is 131170261. The next prime is 131170289. The reversal of 131170287 is 782071131.

It is not a de Polignac number, because 131170287 - 2¹⁶ = 131104751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131170289) 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, 30889 + ... + 34877.

It is an arithmetic number, because the mean of its divisors is an integer number (11144070).

Almost surely, 2^131170287 is an apocalyptic number.

131170287 is a deficient number, since it is larger than the sum of its proper divisors (47134833).

131170287 is a wasteful number, since it uses less digits than its factorization.

131170287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202.

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 131170287 is about 11452.9597484668. The cubic root of 131170287 is about 508.0952750290.

The spelling of 131170287 in words is "one hundred thirty-one million, one hundred seventy thousand, two hundred eighty-seven".