14991609 has 8 divisors (see below), whose sum is σ = 20476512. Its totient is φ = 9750560.

The previous prime is 14991601. The next prime is 14991617. The reversal of 14991609 is 90619941.

14991609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (14991601) and next prime (14991617).

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 14991609 - 2³ = 14991601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14991601) 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, 60819 + ... + 61064.

It is an arithmetic number, because the mean of its divisors is an integer number (2559564).

Almost surely, 2^14991609 is an apocalyptic number.

It is an amenable number.

14991609 is a deficient number, since it is larger than the sum of its proper divisors (5484903).

14991609 is a wasteful number, since it uses less digits than its factorization.

14991609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121927.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 14991609 is about 3871.8999212273. The cubic root of 14991609 is about 246.5752122209.

The spelling of 14991609 in words is "fourteen million, nine hundred ninety-one thousand, six hundred nine".