14121729 has 16 divisors (see below), whose sum is σ = 20980800. Its totient is φ = 9387648.

The previous prime is 14121727. The next prime is 14121733. The reversal of 14121729 is 92712141.

It is not a de Polignac number, because 14121729 - 2¹ = 14121727 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (14121727) 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 15 ways as a sum of consecutive naturals, for example, 14737 + ... + 15665.

It is an arithmetic number, because the mean of its divisors is an integer number (1311300).

Almost surely, 2^14121729 is an apocalyptic number.

It is an amenable number.

14121729 is a deficient number, since it is larger than the sum of its proper divisors (6859071).

14121729 is an equidigital number, since it uses as much as digits as its factorization.

14121729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501 (or 1495 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 14121729 is about 3757.8889020300. Note that the first 3 decimals coincide. The cubic root of 14121729 is about 241.7107454015.

It can be divided in two parts, 141217 and 29, that added together give a triangular number (141246 = T₅₃₁).

The spelling of 14121729 in words is "fourteen million, one hundred twenty-one thousand, seven hundred twenty-nine".