131283207 has 16 divisors (see below), whose sum is σ = 212175360. Its totient is φ = 79565400.

The previous prime is 131283199. The next prime is 131283211. The reversal of 131283207 is 702382131.

It is not a de Polignac number, because 131283207 - 2³ = 131283199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131283247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220719 + ... + 221312.

It is an arithmetic number, because the mean of its divisors is an integer number (13260960).

Almost surely, 2^131283207 is an apocalyptic number.

131283207 is a deficient number, since it is larger than the sum of its proper divisors (80892153).

131283207 is a wasteful number, since it uses less digits than its factorization.

131283207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442051 (or 442045 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 131283207 is about 11457.8884180289. Note that the first 3 decimals coincide. The cubic root of 131283207 is about 508.2410338078.

The spelling of 131283207 in words is "one hundred thirty-one million, two hundred eighty-three thousand, two hundred seven".