18149363 has 2 divisors, whose sum is σ = 18149364. Its totient is φ = 18149362.

The previous prime is 18149309. The next prime is 18149377. The reversal of 18149363 is 36394181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18149363 - 2¹⁴ = 18132979 is a prime.

It is not a weakly prime, because it can be changed into another prime (18149303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9074681 + 9074682.

It is an arithmetic number, because the mean of its divisors is an integer number (9074682).

Almost surely, 2^18149363 is an apocalyptic number.

18149363 is a deficient number, since it is larger than the sum of its proper divisors (1).

18149363 is an equidigital number, since it uses as much as digits as its factorization.

18149363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 18149363 is about 4260.2069198573. The cubic root of 18149363 is about 262.7970357912.

The spelling of 18149363 in words is "eighteen million, one hundred forty-nine thousand, three hundred sixty-three".