15340489 has 2 divisors, whose sum is σ = 15340490. Its totient is φ = 15340488.

The previous prime is 15340469. The next prime is 15340499. The reversal of 15340489 is 98404351.

15340489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10465225 + 4875264 = 3235^2 + 2208^2 .

It is a cyclic number.

It is not a de Polignac number, because 15340489 - 2⁷ = 15340361 is a prime.

It is not a weakly prime, because it can be changed into another prime (15340469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7670244 + 7670245.

It is an arithmetic number, because the mean of its divisors is an integer number (7670245).

Almost surely, 2^15340489 is an apocalyptic number.

It is an amenable number.

15340489 is a deficient number, since it is larger than the sum of its proper divisors (1).

15340489 is an equidigital number, since it uses as much as digits as its factorization.

15340489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 15340489 is about 3916.6936311129. The cubic root of 15340489 is about 248.4733037728.

The spelling of 15340489 in words is "fifteen million, three hundred forty thousand, four hundred eighty-nine".