14991329 has 4 divisors (see below), whose sum is σ = 15139860. Its totient is φ = 14842800.

The previous prime is 14991313. The next prime is 14991349. The reversal of 14991329 is 92319941.

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 9120400 + 5870929 = 3020^2 + 2423^2 .

It is a cyclic number.

It is not a de Polignac number, because 14991329 - 2⁴ = 14991313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14991292 and 14991301.

It is not an unprimeable number, because it can be changed into a prime (14991349) 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, 74114 + ... + 74315.

It is an arithmetic number, because the mean of its divisors is an integer number (3784965).

Almost surely, 2^14991329 is an apocalyptic number.

It is an amenable number.

14991329 is a deficient number, since it is larger than the sum of its proper divisors (148531).

14991329 is a wasteful number, since it uses less digits than its factorization.

14991329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148530.

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

The square root of 14991329 is about 3871.8637630991. The cubic root of 14991329 is about 246.5736771069.

The spelling of 14991329 in words is "fourteen million, nine hundred ninety-one thousand, three hundred twenty-nine".