14745509 has 2 divisors, whose sum is σ = 14745510. Its totient is φ = 14745508.

The previous prime is 14745503. The next prime is 14745547. The reversal of 14745509 is 90554741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10543009 + 4202500 = 3247^2 + 2050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14745509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14745503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7372754 + 7372755.

It is an arithmetic number, because the mean of its divisors is an integer number (7372755).

Almost surely, 2^14745509 is an apocalyptic number.

It is an amenable number.

14745509 is a deficient number, since it is larger than the sum of its proper divisors (1).

14745509 is an equidigital number, since it uses as much as digits as its factorization.

14745509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 14745509 is about 3839.9881510234. The cubic root of 14745509 is about 245.2185139222.

The spelling of 14745509 in words is "fourteen million, seven hundred forty-five thousand, five hundred nine".