131773285 has 16 divisors (see below), whose sum is σ = 184922496. Its totient is φ = 88256448.

The previous prime is 131773283. The next prime is 131773297. The reversal of 131773285 is 582377131.

It is not a de Polignac number, because 131773285 - 2¹ = 131773283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131773283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42274 + ... + 45283.

It is an arithmetic number, because the mean of its divisors is an integer number (11557656).

Almost surely, 2^131773285 is an apocalyptic number.

It is an amenable number.

131773285 is a deficient number, since it is larger than the sum of its proper divisors (53149211).

131773285 is an equidigital number, since it uses as much as digits as its factorization.

131773285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87612.

The product of its digits is 35280, while the sum is 37.

The square root of 131773285 is about 11479.2545489679. The cubic root of 131773285 is about 508.8726669056.

The spelling of 131773285 in words is "one hundred thirty-one million, seven hundred seventy-three thousand, two hundred eighty-five".