8312137 has 2 divisors, whose sum is σ = 8312138. Its totient is φ = 8312136.

The previous prime is 8312119. The next prime is 8312147. The reversal of 8312137 is 7312138.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7458361 + 853776 = 2731^2 + 924^2 .

It is a cyclic number.

It is not a de Polignac number, because 8312137 - 2¹⁹ = 7787849 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8312147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4156068 + 4156069.

It is an arithmetic number, because the mean of its divisors is an integer number (4156069).

Almost surely, 2^8312137 is an apocalyptic number.

It is an amenable number.

8312137 is a deficient number, since it is larger than the sum of its proper divisors (1).

8312137 is an equidigital number, since it uses as much as digits as its factorization.

8312137 is an evil number, because the sum of its binary digits is even.

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

The square root of 8312137 is about 2883.0776957966. The cubic root of 8312137 is about 202.5680267309.

Subtracting from 8312137 its reverse (7312138), we obtain a palindrome (999999).

The spelling of 8312137 in words is "eight million, three hundred twelve thousand, one hundred thirty-seven".