131875285 has 8 divisors (see below), whose sum is σ = 159702840. Its totient is φ = 104531904.

The previous prime is 131875231. The next prime is 131875319. The reversal of 131875285 is 582578131.

It can be written as a sum of positive squares in 4 ways, for example, as 23590449 + 108284836 = 4857^2 + 10406^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 131875285 - 2⁹ = 131874773 is a prime.

It is a congruent 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, 120442 + ... + 121531.

It is an arithmetic number, because the mean of its divisors is an integer number (19962855).

Almost surely, 2^131875285 is an apocalyptic number.

It is an amenable number.

131875285 is a deficient number, since it is larger than the sum of its proper divisors (27827555).

131875285 is a wasteful number, since it uses less digits than its factorization.

131875285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242087.

The product of its digits is 67200, while the sum is 40.

The square root of 131875285 is about 11483.6964867590. The cubic root of 131875285 is about 509.0039318159.

The spelling of 131875285 in words is "one hundred thirty-one million, eight hundred seventy-five thousand, two hundred eighty-five".