22755139 has 12 divisors (see below), whose sum is σ = 25174240. Its totient is φ = 20552400.

The previous prime is 22755137. The next prime is 22755151. The reversal of 22755139 is 93155722.

It is not a de Polignac number, because 22755139 - 2¹ = 22755137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22755137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21382 + ... + 22420.

Almost surely, 2^22755139 is an apocalyptic number.

22755139 is a deficient number, since it is larger than the sum of its proper divisors (2419101).

22755139 is a wasteful number, since it uses less digits than its factorization.

22755139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 1231 counting only the distinct ones).

The product of its digits is 18900, while the sum is 34.

The square root of 22755139 is about 4770.2346902432. The cubic root of 22755139 is about 283.3738893119.

It can be divided in two parts, 22 and 755139, that added together give a square (755161 = 869²).

The spelling of 22755139 in words is "twenty-two million, seven hundred fifty-five thousand, one hundred thirty-nine".