15240899 has 2 divisors, whose sum is σ = 15240900. Its totient is φ = 15240898.

The previous prime is 15240893. The next prime is 15240913. The reversal of 15240899 is 99804251.

15240899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15240899 - 2²⁰ = 14192323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15240893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7620449 + 7620450.

It is an arithmetic number, because the mean of its divisors is an integer number (7620450).

Almost surely, 2^15240899 is an apocalyptic number.

15240899 is a deficient number, since it is larger than the sum of its proper divisors (1).

15240899 is an equidigital number, since it uses as much as digits as its factorization.

15240899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 15240899 is about 3903.9594004036. The cubic root of 15240899 is about 247.9344422189.

The spelling of 15240899 in words is "fifteen million, two hundred forty thousand, eight hundred ninety-nine".