22453139 has 2 divisors, whose sum is σ = 22453140. Its totient is φ = 22453138.

The previous prime is 22453133. The next prime is 22453147. The reversal of 22453139 is 93135422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22453139 - 2²⁰ = 21404563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22453133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11226569 + 11226570.

It is an arithmetic number, because the mean of its divisors is an integer number (11226570).

Almost surely, 2^22453139 is an apocalyptic number.

22453139 is a deficient number, since it is larger than the sum of its proper divisors (1).

22453139 is an equidigital number, since it uses as much as digits as its factorization.

22453139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 29.

The square root of 22453139 is about 4738.4743325252. The cubic root of 22453139 is about 282.1146818234.

It can be divided in two parts, 2 and 2453139, that multiplied together give a triangular number (4906278 = T₃₁₃₂).

The spelling of 22453139 in words is "twenty-two million, four hundred fifty-three thousand, one hundred thirty-nine".