15314609 has 6 divisors (see below), whose sum is σ = 15468390. Its totient is φ = 15162336.

The previous prime is 15314561. The next prime is 15314617. The reversal of 15314609 is 90641351.

It can be written as a sum of positive squares in 3 ways, for example, as 7317025 + 7997584 = 2705^2 + 2828^2 .

It is not a de Polignac number, because 15314609 - 2¹² = 15310513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15314669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11237 + ... + 12525.

It is an arithmetic number, because the mean of its divisors is an integer number (2578065).

Almost surely, 2^15314609 is an apocalyptic number.

It is an amenable number.

15314609 is a deficient number, since it is larger than the sum of its proper divisors (153781).

15314609 is an equidigital number, since it uses as much as digits as its factorization.

15314609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 15314609 is about 3913.3884294815. The cubic root of 15314609 is about 248.3334970896. Note that the first 3 decimals are identical.

The spelling of 15314609 in words is "fifteen million, three hundred fourteen thousand, six hundred nine".