18305153 has 2 divisors, whose sum is σ = 18305154. Its totient is φ = 18305152.

The previous prime is 18305129. The next prime is 18305191. The reversal of 18305153 is 35150381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16581184 + 1723969 = 4072^2 + 1313^2 .

It is a cyclic number.

It is not a de Polignac number, because 18305153 - 2¹² = 18301057 is a prime.

It is not a weakly prime, because it can be changed into another prime (18302153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9152576 + 9152577.

It is an arithmetic number, because the mean of its divisors is an integer number (9152577).

Almost surely, 2^18305153 is an apocalyptic number.

It is an amenable number.

18305153 is a deficient number, since it is larger than the sum of its proper divisors (1).

18305153 is an equidigital number, since it uses as much as digits as its factorization.

18305153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 18305153 is about 4278.4521733917. The cubic root of 18305153 is about 263.5468245025.

The spelling of 18305153 in words is "eighteen million, three hundred five thousand, one hundred fifty-three".