22773139 has 2 divisors, whose sum is σ = 22773140. Its totient is φ = 22773138.

The previous prime is 22773133. The next prime is 22773173. The reversal of 22773139 is 93137722.

It is an a-pointer prime, because the next prime (22773173) can be obtained adding 22773139 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22773139 - 2¹⁵ = 22740371 is a prime.

It is not a weakly prime, because it can be changed into another prime (22773133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11386569 + 11386570.

It is an arithmetic number, because the mean of its divisors is an integer number (11386570).

Almost surely, 2^22773139 is an apocalyptic number.

22773139 is a deficient number, since it is larger than the sum of its proper divisors (1).

22773139 is an equidigital number, since it uses as much as digits as its factorization.

22773139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876, while the sum is 34.

The square root of 22773139 is about 4772.1210169064. The cubic root of 22773139 is about 283.4485887113.

The spelling of 22773139 in words is "twenty-two million, seven hundred seventy-three thousand, one hundred thirty-nine".