131625321 has 8 divisors (see below), whose sum is σ = 177238464. Its totient is φ = 86881200.

The previous prime is 131625313. The next prime is 131625397. The reversal of 131625321 is 123526131.

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

It is not a de Polignac number, because 131625321 - 2³ = 131625313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131625291 and 131625300.

It is not an unprimeable number, because it can be changed into a prime (131625311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216901 + ... + 217506.

It is an arithmetic number, because the mean of its divisors is an integer number (22154808).

Almost surely, 2^131625321 is an apocalyptic number.

It is an amenable number.

131625321 is a deficient number, since it is larger than the sum of its proper divisors (45613143).

131625321 is a wasteful number, since it uses less digits than its factorization.

131625321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434511.

The product of its digits is 1080, while the sum is 24.

The square root of 131625321 is about 11472.8078951929. The cubic root of 131625321 is about 508.6821299670.

The spelling of 131625321 in words is "one hundred thirty-one million, six hundred twenty-five thousand, three hundred twenty-one".