7322137 has 2 divisors, whose sum is σ = 7322138. Its totient is φ = 7322136.

The previous prime is 7322131. The next prime is 7322153. The reversal of 7322137 is 7312237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7241481 + 80656 = 2691^2 + 284^2 .

It is an emirp because it is prime and its reverse (7312237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7322137 - 2³ = 7322129 is a prime.

It is a super-2 number, since 2×7322137² = 107227380493538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7322131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3661068 + 3661069.

It is an arithmetic number, because the mean of its divisors is an integer number (3661069).

Almost surely, 2^7322137 is an apocalyptic number.

It is an amenable number.

7322137 is a deficient number, since it is larger than the sum of its proper divisors (1).

7322137 is an equidigital number, since it uses as much as digits as its factorization.

7322137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 25.

The square root of 7322137 is about 2705.9447518381. The cubic root of 7322137 is about 194.1836306430.

The spelling of 7322137 in words is "seven million, three hundred twenty-two thousand, one hundred thirty-seven".