18275269 has 2 divisors, whose sum is σ = 18275270. Its totient is φ = 18275268.

The previous prime is 18275263. The next prime is 18275281. The reversal of 18275269 is 96257281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11189025 + 7086244 = 3345^2 + 2662^2 .

It is a cyclic number.

It is not a de Polignac number, because 18275269 - 2³ = 18275261 is a prime.

It is a super-2 number, since 2×18275269² = 667970914044722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18275261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9137634 + 9137635.

It is an arithmetic number, because the mean of its divisors is an integer number (9137635).

Almost surely, 2^18275269 is an apocalyptic number.

It is an amenable number.

18275269 is a deficient number, since it is larger than the sum of its proper divisors (1).

18275269 is an equidigital number, since it uses as much as digits as its factorization.

18275269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 40.

The square root of 18275269 is about 4274.9583623703. The cubic root of 18275269 is about 263.4033289691.

The spelling of 18275269 in words is "eighteen million, two hundred seventy-five thousand, two hundred sixty-nine".