18083453 has 2 divisors, whose sum is σ = 18083454. Its totient is φ = 18083452.

The previous prime is 18083449. The next prime is 18083473. The reversal of 18083453 is 35438081.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17749369 + 334084 = 4213^2 + 578^2 .

It is a cyclic number.

It is not a de Polignac number, because 18083453 - 2² = 18083449 is a prime.

It is a super-2 number, since 2×18083453² = 654022544806418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18083423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9041726 + 9041727.

It is an arithmetic number, because the mean of its divisors is an integer number (9041727).

Almost surely, 2^18083453 is an apocalyptic number.

It is an amenable number.

18083453 is a deficient number, since it is larger than the sum of its proper divisors (1).

18083453 is an equidigital number, since it uses as much as digits as its factorization.

18083453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 18083453 is about 4252.4643443538. The cubic root of 18083453 is about 262.4785312752.

The spelling of 18083453 in words is "eighteen million, eighty-three thousand, four hundred fifty-three".