131268185 has 8 divisors (see below), whose sum is σ = 159082056. Its totient is φ = 103974400.

The previous prime is 131268149. The next prime is 131268197. The reversal of 131268185 is 581862131.

It can be written as a sum of positive squares in 4 ways, for example, as 15555136 + 115713049 = 3944^2 + 10757^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131268185 - 2¹⁰ = 131267161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129464 + ... + 130473.

It is an arithmetic number, because the mean of its divisors is an integer number (19885257).

Almost surely, 2^131268185 is an apocalyptic number.

It is an amenable number.

131268185 is a deficient number, since it is larger than the sum of its proper divisors (27813871).

131268185 is a wasteful number, since it uses less digits than its factorization.

131268185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260043.

The product of its digits is 11520, while the sum is 35.

The square root of 131268185 is about 11457.2328683675. The cubic root of 131268185 is about 508.2216480127.

The spelling of 131268185 in words is "one hundred thirty-one million, two hundred sixty-eight thousand, one hundred eighty-five".