131625789 has 8 divisors (see below), whose sum is σ = 177905472. Its totient is φ = 86548320.

The previous prime is 131625779. The next prime is 131625811. The reversal of 131625789 is 987526131.

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

It is not a de Polignac number, because 131625789 - 2²⁵ = 98071357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131625789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131625719) 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 7 ways as a sum of consecutive naturals, for example, 300297 + ... + 300734.

It is an arithmetic number, because the mean of its divisors is an integer number (22238184).

Almost surely, 2^131625789 is an apocalyptic number.

It is an amenable number.

131625789 is a deficient number, since it is larger than the sum of its proper divisors (46279683).

131625789 is an equidigital number, since it uses as much as digits as its factorization.

131625789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601107.

The product of its digits is 90720, while the sum is 42.

The square root of 131625789 is about 11472.8282912279. The cubic root of 131625789 is about 508.6827328474.

The spelling of 131625789 in words is "one hundred thirty-one million, six hundred twenty-five thousand, seven hundred eighty-nine".