18102057 has 8 divisors (see below), whose sum is σ = 24195360. Its totient is φ = 12038400.

The previous prime is 18102053. The next prime is 18102083. The reversal of 18102057 is 75020181.

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

It is not a de Polignac number, because 18102057 - 2² = 18102053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18102053) 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, 5944 + ... + 8457.

It is an arithmetic number, because the mean of its divisors is an integer number (3024420).

Almost surely, 2^18102057 is an apocalyptic number.

It is an amenable number.

18102057 is a deficient number, since it is larger than the sum of its proper divisors (6093303).

18102057 is a wasteful number, since it uses less digits than its factorization.

18102057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14823.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 18102057 is about 4254.6512195478. The cubic root of 18102057 is about 262.5685118223.

The spelling of 18102057 in words is "eighteen million, one hundred two thousand, fifty-seven".