18148065 has 24 divisors (see below), whose sum is σ = 31446720. Its totient is φ = 8933184.

The previous prime is 18148037. The next prime is 18148069. The reversal of 18148065 is 56084181.

It is not a de Polignac number, because 18148065 - 2⁶ = 18148001 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18148069) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1045 + ... + 6114.

It is an arithmetic number, because the mean of its divisors is an integer number (1310280).

Almost surely, 2^18148065 is an apocalyptic number.

18148065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18148065 is a deficient number, since it is larger than the sum of its proper divisors (13298655).

18148065 is a wasteful number, since it uses less digits than its factorization.

18148065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7193 (or 7180 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 18148065 is about 4260.0545771152. The cubic root of 18148065 is about 262.7907707654.

The spelling of 18148065 in words is "eighteen million, one hundred forty-eight thousand, sixty-five".