23422137 has 4 divisors (see below), whose sum is σ = 31229520. Its totient is φ = 15614756.

The previous prime is 23422129. The next prime is 23422171. The reversal of 23422137 is 73122432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23422137 - 2³ = 23422129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23422037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3903687 + ... + 3903692.

It is an arithmetic number, because the mean of its divisors is an integer number (7807380).

Almost surely, 2^23422137 is an apocalyptic number.

It is an amenable number.

23422137 is a deficient number, since it is larger than the sum of its proper divisors (7807383).

23422137 is an equidigital number, since it uses as much as digits as its factorization.

23422137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7807382.

The product of its digits is 2016, while the sum is 24.

The square root of 23422137 is about 4839.6422388437. The cubic root of 23422137 is about 286.1160181003.

Adding to 23422137 its reverse (73122432), we get a palindrome (96544569).

The spelling of 23422137 in words is "twenty-three million, four hundred twenty-two thousand, one hundred thirty-seven".