18275153 has 12 divisors (see below), whose sum is σ = 20956428. Its totient is φ = 15874560.

The previous prime is 18275113. The next prime is 18275167. The reversal of 18275153 is 35157281.

It can be written as a sum of positive squares in 6 ways, for example, as 2458624 + 15816529 = 1568^2 + 3977^2 .

It is not a de Polignac number, because 18275153 - 2²⁰ = 17226577 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18275113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308 + ... + 6053.

It is an arithmetic number, because the mean of its divisors is an integer number (1746369).

Almost surely, 2^18275153 is an apocalyptic number.

18275153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18275153 is a deficient number, since it is larger than the sum of its proper divisors (2681275).

18275153 is a wasteful number, since it uses less digits than its factorization.

18275153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404 (or 6391 counting only the distinct ones).

The product of its digits is 8400, while the sum is 32.

The square root of 18275153 is about 4274.9447949652. The cubic root of 18275153 is about 263.4027716613.

The spelling of 18275153 in words is "eighteen million, two hundred seventy-five thousand, one hundred fifty-three".