18359145 has 48 divisors (see below), whose sum is σ = 36691200. Its totient is φ = 8318592.

The previous prime is 18359137. The next prime is 18359153. The reversal of 18359145 is 54195381.

It is an interprime number because it is at equal distance from previous prime (18359137) and next prime (18359153).

It is not a de Polignac number, because 18359145 - 2³ = 18359137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52431 + ... + 52779.

It is an arithmetic number, because the mean of its divisors is an integer number (764400).

Almost surely, 2^18359145 is an apocalyptic number.

18359145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18359145 is a deficient number, since it is larger than the sum of its proper divisors (18332055).

18359145 is a wasteful number, since it uses less digits than its factorization.

18359145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 531 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 18359145 is about 4284.7572860082. The cubic root of 18359145 is about 263.8056851795.

The spelling of 18359145 in words is "eighteen million, three hundred fifty-nine thousand, one hundred forty-five".