14138999 has 6 divisors (see below), whose sum is σ = 16447464. Its totient is φ = 12119100.

The previous prime is 14138981. The next prime is 14139017. The reversal of 14138999 is 99983141.

It is an interprime number because it is at equal distance from previous prime (14138981) and next prime (14139017).

It is not a de Polignac number, because 14138999 - 2⁸ = 14138743 is a prime.

It is a super-2 number, since 2×14138999² = 399822585444002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14138939) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144227 + ... + 144324.

It is an arithmetic number, because the mean of its divisors is an integer number (2741244).

Almost surely, 2^14138999 is an apocalyptic number.

14138999 is a deficient number, since it is larger than the sum of its proper divisors (2308465).

14138999 is an equidigital number, since it uses as much as digits as its factorization.

14138999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288565 (or 288558 counting only the distinct ones).

The product of its digits is 69984, while the sum is 44.

The square root of 14138999 is about 3760.1860326319. The cubic root of 14138999 is about 241.8092376865.

The spelling of 14138999 in words is "fourteen million, one hundred thirty-eight thousand, nine hundred ninety-nine".