131007909 has 8 divisors (see below), whose sum is σ = 176478400. Its totient is φ = 86438016.

The previous prime is 131007893. The next prime is 131007913. The reversal of 131007909 is 909700131.

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

It is not a de Polignac number, because 131007909 - 2⁴ = 131007893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131007509) 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, 224809 + ... + 225390.

It is an arithmetic number, because the mean of its divisors is an integer number (22059800).

Almost surely, 2^131007909 is an apocalyptic number.

It is an amenable number.

131007909 is a deficient number, since it is larger than the sum of its proper divisors (45470491).

131007909 is an equidigital number, since it uses as much as digits as its factorization.

131007909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450299.

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 131007909 is about 11445.8686433141. The cubic root of 131007909 is about 507.8855284366.

The spelling of 131007909 in words is "one hundred thirty-one million, seven thousand, nine hundred nine".