22323139 has 2 divisors, whose sum is σ = 22323140. Its totient is φ = 22323138.

The previous prime is 22323101. The next prime is 22323143. The reversal of 22323139 is 93132322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22323139 - 2¹⁷ = 22192067 is a prime.

It is a super-3 number, since 3×22323139³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22323199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11161569 + 11161570.

It is an arithmetic number, because the mean of its divisors is an integer number (11161570).

Almost surely, 2^22323139 is an apocalyptic number.

22323139 is a deficient number, since it is larger than the sum of its proper divisors (1).

22323139 is an equidigital number, since it uses as much as digits as its factorization.

22323139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 25.

The square root of 22323139 is about 4724.7369238932. The cubic root of 22323139 is about 281.5691616957.

It can be divided in two parts, 2232313 and 9, that added together give a palindrome (2232322).

The spelling of 22323139 in words is "twenty-two million, three hundred twenty-three thousand, one hundred thirty-nine".