131625985 has 8 divisors (see below), whose sum is σ = 167242536. Its totient is φ = 99106560.

The previous prime is 131625979. The next prime is 131626003. The reversal of 131625985 is 589526131.

It can be written as a sum of positive squares in 4 ways, for example, as 26132544 + 105493441 = 5112^2 + 10271^2 .

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

It is not a de Polignac number, because 131625985 - 2⁵ = 131625953 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, 774186 + ... + 774355.

It is an arithmetic number, because the mean of its divisors is an integer number (20905317).

Almost surely, 2^131625985 is an apocalyptic number.

It is an amenable number.

131625985 is a deficient number, since it is larger than the sum of its proper divisors (35616551).

131625985 is a wasteful number, since it uses less digits than its factorization.

131625985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548563.

The product of its digits is 64800, while the sum is 40.

The square root of 131625985 is about 11472.8368331464. The cubic root of 131625985 is about 508.6829853353.

The spelling of 131625985 in words is "one hundred thirty-one million, six hundred twenty-five thousand, nine hundred eighty-five".