22140269 has 2 divisors, whose sum is σ = 22140270. Its totient is φ = 22140268.

The previous prime is 22140247. The next prime is 22140277. The reversal of 22140269 is 96204122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17322244 + 4818025 = 4162^2 + 2195^2 .

It is a cyclic number.

It is not a de Polignac number, because 22140269 - 2¹² = 22136173 is a prime.

It is a super-2 number, since 2×22140269² = 980383022784722, which contains 22 as substring.

It is a Chen prime.

It is equal to p_1397510 and since 22140269 and 1397510 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22140299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11070134 + 11070135.

It is an arithmetic number, because the mean of its divisors is an integer number (11070135).

Almost surely, 2^22140269 is an apocalyptic number.

It is an amenable number.

22140269 is a deficient number, since it is larger than the sum of its proper divisors (1).

22140269 is an equidigital number, since it uses as much as digits as its factorization.

22140269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 22140269 is about 4705.3447270099. The cubic root of 22140269 is about 280.7981859134.

The spelling of 22140269 in words is "twenty-two million, one hundred forty thousand, two hundred sixty-nine".