18389153 has 2 divisors, whose sum is σ = 18389154. Its totient is φ = 18389152.

The previous prime is 18389149. The next prime is 18389183. The reversal of 18389153 is 35198381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18386944 + 2209 = 4288^2 + 47^2 .

It is a cyclic number.

It is not a de Polignac number, because 18389153 - 2² = 18389149 is a prime.

It is not a weakly prime, because it can be changed into another prime (18389123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9194576 + 9194577.

It is an arithmetic number, because the mean of its divisors is an integer number (9194577).

Almost surely, 2^18389153 is an apocalyptic number.

It is an amenable number.

18389153 is a deficient number, since it is larger than the sum of its proper divisors (1).

18389153 is an equidigital number, since it uses as much as digits as its factorization.

18389153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 38.

The square root of 18389153 is about 4288.2575715551. The cubic root of 18389153 is about 263.9493369647.

The spelling of 18389153 in words is "eighteen million, three hundred eighty-nine thousand, one hundred fifty-three".