18146529 has 6 divisors (see below), whose sum is σ = 26211666. Its totient is φ = 12097680.

The previous prime is 18146521. The next prime is 18146549. The reversal of 18146529 is 92564181.

It can be written as a sum of positive squares in only one way, i.e., 10595025 + 7551504 = 3255^2 + 2748^2 .

It is not a de Polignac number, because 18146529 - 2³ = 18146521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18146493 and 18146502.

It is not an unprimeable number, because it can be changed into a prime (18146521) 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 5 ways as a sum of consecutive naturals, for example, 1008132 + ... + 1008149.

It is an arithmetic number, because the mean of its divisors is an integer number (4368611).

Almost surely, 2^18146529 is an apocalyptic number.

It is an amenable number.

18146529 is a deficient number, since it is larger than the sum of its proper divisors (8065137).

18146529 is a wasteful number, since it uses less digits than its factorization.

18146529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016287 (or 2016284 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 18146529 is about 4259.8742939200. The cubic root of 18146529 is about 262.7833566046.

The spelling of 18146529 in words is "eighteen million, one hundred forty-six thousand, five hundred twenty-nine".