18014279 has 2 divisors, whose sum is σ = 18014280. Its totient is φ = 18014278.

The previous prime is 18014257. The next prime is 18014281. The reversal of 18014279 is 97241081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18014279 - 2²⁰ = 16965703 is a prime.

Together with 18014281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18014209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9007139 + 9007140.

It is an arithmetic number, because the mean of its divisors is an integer number (9007140).

Almost surely, 2^18014279 is an apocalyptic number.

18014279 is a deficient number, since it is larger than the sum of its proper divisors (1).

18014279 is an equidigital number, since it uses as much as digits as its factorization.

18014279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 18014279 is about 4244.3231498085. The cubic root of 18014279 is about 262.1434203014.

The spelling of 18014279 in words is "eighteen million, fourteen thousand, two hundred seventy-nine".