14920909 has 4 divisors (see below), whose sum is σ = 15706240. Its totient is φ = 14135580.

The previous prime is 14920897. The next prime is 14920921. The reversal of 14920909 is 90902941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (14920897) and next prime (14920921).

It is a cyclic number.

It is not a de Polignac number, because 14920909 - 2¹¹ = 14918861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14920979) 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, 392637 + ... + 392674.

It is an arithmetic number, because the mean of its divisors is an integer number (3926560).

Almost surely, 2^14920909 is an apocalyptic number.

14920909 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

14920909 is a deficient number, since it is larger than the sum of its proper divisors (785331).

14920909 is an equidigital number, since it uses as much as digits as its factorization.

14920909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785330.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 14920909 is about 3862.7592469632. The cubic root of 14920909 is about 246.1869874073.

The spelling of 14920909 in words is "fourteen million, nine hundred twenty thousand, nine hundred nine".