131973289 has 8 divisors (see below), whose sum is σ = 150944000. Its totient is φ = 113031936.

The previous prime is 131973271. The next prime is 131973311. The reversal of 131973289 is 982379131.

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 131973289 - 2⁹ = 131972777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131973089) 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, 3337 + ... + 16585.

It is an arithmetic number, because the mean of its divisors is an integer number (18868000).

Almost surely, 2^131973289 is an apocalyptic number.

It is an amenable number.

131973289 is a deficient number, since it is larger than the sum of its proper divisors (18970711).

131973289 is a wasteful number, since it uses less digits than its factorization.

131973289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14679.

The product of its digits is 81648, while the sum is 43.

The square root of 131973289 is about 11487.9627871960. The cubic root of 131973289 is about 509.1299904860.

The spelling of 131973289 in words is "one hundred thirty-one million, nine hundred seventy-three thousand, two hundred eighty-nine".