18102069 has 8 divisors (see below), whose sum is σ = 26817920. Its totient is φ = 12068028.

The previous prime is 18102053. The next prime is 18102083. The reversal of 18102069 is 96020181.

It is not a de Polignac number, because 18102069 - 2⁴ = 18102053 is a prime.

It is a super-2 number, since 2×18102069² = 655369804161522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 670447 = 18102069 / (1 + 8 + 1 + 0 + 2 + 0 + 6 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18102169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335197 + ... + 335250.

It is an arithmetic number, because the mean of its divisors is an integer number (3352240).

Almost surely, 2^18102069 is an apocalyptic number.

It is an amenable number.

18102069 is a deficient number, since it is larger than the sum of its proper divisors (8715851).

18102069 is an equidigital number, since it uses as much as digits as its factorization.

18102069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670456 (or 670450 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 18102069 is about 4254.6526297690. The cubic root of 18102069 is about 262.5685698418.

The spelling of 18102069 in words is "eighteen million, one hundred two thousand, sixty-nine".