14129789 has 4 divisors (see below), whose sum is σ = 14474460. Its totient is φ = 13785120.

The previous prime is 14129783. The next prime is 14129803. The reversal of 14129789 is 98792141.

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

It can be written as a sum of positive squares in 2 ways, for example, as 550564 + 13579225 = 742^2 + 3685^2 .

It is a cyclic number.

It is not a de Polignac number, because 14129789 - 2¹² = 14125693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 344629 = 14129789 / (1 + 4 + 1 + 2 + 9 + 7 + 8 + 9).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14129783) 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, 172274 + ... + 172355.

It is an arithmetic number, because the mean of its divisors is an integer number (3618615).

Almost surely, 2^14129789 is an apocalyptic number.

It is an amenable number.

14129789 is a deficient number, since it is larger than the sum of its proper divisors (344671).

14129789 is an equidigital number, since it uses as much as digits as its factorization.

14129789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344670.

The product of its digits is 36288, while the sum is 41.

The square root of 14129789 is about 3758.9611596823. The cubic root of 14129789 is about 241.7567222570.

The spelling of 14129789 in words is "fourteen million, one hundred twenty-nine thousand, seven hundred eighty-nine".