14129399 has 4 divisors (see below), whose sum is σ = 14171664. Its totient is φ = 14087136.

The previous prime is 14129393. The next prime is 14129417. The reversal of 14129399 is 99392141.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14129399 is a prime.

It is a super-2 number, since 2×14129399² = 399279832202402, 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 (14129393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20627 + ... + 21300.

It is an arithmetic number, because the mean of its divisors is an integer number (3542916).

Almost surely, 2^14129399 is an apocalyptic number.

14129399 is a deficient number, since it is larger than the sum of its proper divisors (42265).

14129399 is an equidigital number, since it uses as much as digits as its factorization.

14129399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42264.

The product of its digits is 17496, while the sum is 38.

The square root of 14129399 is about 3758.9092832895. The cubic root of 14129399 is about 241.7544979730.

The spelling of 14129399 in words is "fourteen million, one hundred twenty-nine thousand, three hundred ninety-nine".