18930153 has 16 divisors (see below), whose sum is σ = 27645696. Its totient is φ = 11426640.

The previous prime is 18930133. The next prime is 18930161. The reversal of 18930153 is 35103981.

It is a happy number.

It is not a de Polignac number, because 18930153 - 2⁶ = 18930089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18930153.

It is not an unprimeable number, because it can be changed into a prime (18930133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8326 + ... + 10352.

It is an arithmetic number, because the mean of its divisors is an integer number (1727856).

Almost surely, 2^18930153 is an apocalyptic number.

It is an amenable number.

18930153 is a deficient number, since it is larger than the sum of its proper divisors (8715543).

18930153 is a wasteful number, since it uses less digits than its factorization.

18930153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 18930153 is about 4350.8795662486. The cubic root of 18930153 is about 266.5127811796.

Subtracting 18930153 from its reverse (35103981), we obtain a triangular number (16173828 = T₅₆₈₇).

The spelling of 18930153 in words is "eighteen million, nine hundred thirty thousand, one hundred fifty-three".