14329981 has 8 divisors (see below), whose sum is σ = 14750424. Its totient is φ = 13915200.

The previous prime is 14329961. The next prime is 14329999. The reversal of 14329981 is 18992341.

14329981 is a nontrivial binomial coefficient, being equal to C(5354, 2).

It can be written as a sum of positive squares in 4 ways, for example, as 3006756 + 11323225 = 1734^2 + 3365^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14329981 - 2⁷ = 14329853 is a prime.

It is a super-2 number, since 2×14329981² = 410696710920722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14329981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14329901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4015 + ... + 6691.

It is an arithmetic number, because the mean of its divisors is an integer number (1843803).

Almost surely, 2^14329981 is an apocalyptic number.

14329981 is the 5353-rd triangular number and also the 2677-th hexagonal number.

14329981 is the 1785-th centered nonagonal number.

It is an amenable number.

14329981 is a deficient number, since it is larger than the sum of its proper divisors (420443).

14329981 is a wasteful number, since it uses less digits than its factorization.

14329981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831.

The product of its digits is 15552, while the sum is 37.

The square root of 14329981 is about 3785.4961365718. The cubic root of 14329981 is about 242.8931151691.

It can be divided in two parts, 143299 and 81, that added together give a triangular number (143380 = T₅₃₅).

The spelling of 14329981 in words is "fourteen million, three hundred twenty-nine thousand, nine hundred eighty-one".