18020150 has 24 divisors (see below), whose sum is σ = 33640704. Its totient is φ = 7181600.

The previous prime is 18020143. The next prime is 18020173. The reversal of 18020150 is 5102081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18680 + ... + 19620.

It is an arithmetic number, because the mean of its divisors is an integer number (1401696).

Almost surely, 2^18020150 is an apocalyptic number.

18020150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18020150 is a deficient number, since it is larger than the sum of its proper divisors (15620554).

18020150 is a wasteful number, since it uses less digits than its factorization.

18020150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 18020150 is about 4245.0147231782. The cubic root of 18020150 is about 262.1718954323.

The spelling of 18020150 in words is "eighteen million, twenty thousand, one hundred fifty".