18145302 has 16 divisors (see below), whose sum is σ = 41475072. Its totient is φ = 5184360.

The previous prime is 18145297. The next prime is 18145313. The reversal of 18145302 is 20354181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215974 + ... + 216057.

It is an arithmetic number, because the mean of its divisors is an integer number (2592192).

Almost surely, 2^18145302 is an apocalyptic number.

18145302 is an abundant number, since it is smaller than the sum of its proper divisors (23329770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18145302 is a wasteful number, since it uses less digits than its factorization.

18145302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432043.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 18145302 is about 4259.7302731511. The cubic root of 18145302 is about 262.7774336639. Note that the first 3 decimals are identical.

Adding to 18145302 its reverse (20354181), we get a palindrome (38499483).

The spelling of 18145302 in words is "eighteen million, one hundred forty-five thousand, three hundred two".