18102453 has 8 divisors (see below), whose sum is σ = 24327168. Its totient is φ = 11973024.

The previous prime is 18102451. The next prime is 18102463. The reversal of 18102453 is 35420181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18102453 - 2¹ = 18102451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18102451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23376 + ... + 24137.

It is an arithmetic number, because the mean of its divisors is an integer number (3040896).

Almost surely, 2^18102453 is an apocalyptic number.

It is an amenable number.

18102453 is a deficient number, since it is larger than the sum of its proper divisors (6224715).

18102453 is a wasteful number, since it uses less digits than its factorization.

18102453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47643.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 18102453 is about 4254.6977565980. The cubic root of 18102453 is about 262.5704264550.

The spelling of 18102453 in words is "eighteen million, one hundred two thousand, four hundred fifty-three".