131672820237 has 24 divisors (see below), whose sum is σ = 204499343232. Its totient is φ = 75141360000.

The previous prime is 131672820229. The next prime is 131672820239. The reversal of 131672820237 is 732028276131.

It is a happy number.

It is not a de Polignac number, because 131672820237 - 2³ = 131672820229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131672820239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 485964 + ... + 706757.

It is an arithmetic number, because the mean of its divisors is an integer number (8520805968).

Almost surely, 2^131672820237 is an apocalyptic number.

It is an amenable number.

131672820237 is a deficient number, since it is larger than the sum of its proper divisors (72826522995).

131672820237 is a wasteful number, since it uses less digits than its factorization.

131672820237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193489 (or 1193482 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 131672820237 in words is "one hundred thirty-one billion, six hundred seventy-two million, eight hundred twenty thousand, two hundred thirty-seven".