18294253 has 2 divisors, whose sum is σ = 18294254. Its totient is φ = 18294252.

The previous prime is 18294239. The next prime is 18294257. The reversal of 18294253 is 35249281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10381284 + 7912969 = 3222^2 + 2813^2 .

It is a cyclic number.

It is not a de Polignac number, because 18294253 - 2¹³ = 18286061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18294257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9147126 + 9147127.

It is an arithmetic number, because the mean of its divisors is an integer number (9147127).

Almost surely, 2^18294253 is an apocalyptic number.

It is an amenable number.

18294253 is a deficient number, since it is larger than the sum of its proper divisors (1).

18294253 is an equidigital number, since it uses as much as digits as its factorization.

18294253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 34.

The square root of 18294253 is about 4277.1781585527. The cubic root of 18294253 is about 263.4945035202.

The spelling of 18294253 in words is "eighteen million, two hundred ninety-four thousand, two hundred fifty-three".