18914153 has 2 divisors, whose sum is σ = 18914154. Its totient is φ = 18914152.

The previous prime is 18914143. The next prime is 18914179. The reversal of 18914153 is 35141981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17205904 + 1708249 = 4148^2 + 1307^2 .

It is a cyclic number.

It is not a de Polignac number, because 18914153 - 2¹⁶ = 18848617 is a prime.

It is not a weakly prime, because it can be changed into another prime (18914113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9457076 + 9457077.

It is an arithmetic number, because the mean of its divisors is an integer number (9457077).

Almost surely, 2^18914153 is an apocalyptic number.

It is an amenable number.

18914153 is a deficient number, since it is larger than the sum of its proper divisors (1).

18914153 is an equidigital number, since it uses as much as digits as its factorization.

18914153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 32.

The square root of 18914153 is about 4349.0404688851. The cubic root of 18914153 is about 266.4376733793.

The spelling of 18914153 in words is "eighteen million, nine hundred fourteen thousand, one hundred fifty-three".