8372131 has 4 divisors (see below), whose sum is σ = 8384200. Its totient is φ = 8360064.

The previous prime is 8372083. The next prime is 8372137. The reversal of 8372131 is 1312738.

8372131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8372131 - 2⁹ = 8371619 is a prime.

It is a super-2 number, since 2×8372131² = 140185154962322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8372096 and 8372105.

It is not an unprimeable number, because it can be changed into a prime (8372137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4926 + ... + 6403.

It is an arithmetic number, because the mean of its divisors is an integer number (2096050).

Almost surely, 2^8372131 is an apocalyptic number.

8372131 is a deficient number, since it is larger than the sum of its proper divisors (12069).

8372131 is a wasteful number, since it uses less digits than its factorization.

8372131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12068.

The product of its digits is 1008, while the sum is 25.

The square root of 8372131 is about 2893.4634955361. The cubic root of 8372131 is about 203.0542131569.

Adding to 8372131 its reverse (1312738), we get a palindrome (9684869).

The spelling of 8372131 in words is "eight million, three hundred seventy-two thousand, one hundred thirty-one".