18114939 has 12 divisors (see below), whose sum is σ = 26226096. Its totient is φ = 12048912.

The previous prime is 18114931. The next prime is 18114949. The reversal of 18114939 is 93941181.

It is not a de Polignac number, because 18114939 - 2³ = 18114931 is a prime.

It is a super-3 number, since 3×18114939³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18114931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2317 + ... + 6449.

It is an arithmetic number, because the mean of its divisors is an integer number (2185508).

Almost surely, 2^18114939 is an apocalyptic number.

18114939 is a deficient number, since it is larger than the sum of its proper divisors (8111157).

18114939 is a wasteful number, since it uses less digits than its factorization.

18114939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4626 (or 4623 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 18114939 is about 4256.1648229363. The cubic root of 18114939 is about 262.6307810908.

The spelling of 18114939 in words is "eighteen million, one hundred fourteen thousand, nine hundred thirty-nine".