15440099 has 2 divisors, whose sum is σ = 15440100. Its totient is φ = 15440098.

The previous prime is 15440071. The next prime is 15440129. The reversal of 15440099 is 99004451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15440099 - 2¹⁶ = 15374563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15440039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7720049 + 7720050.

It is an arithmetic number, because the mean of its divisors is an integer number (7720050).

Almost surely, 2^15440099 is an apocalyptic number.

15440099 is a deficient number, since it is larger than the sum of its proper divisors (1).

15440099 is an equidigital number, since it uses as much as digits as its factorization.

15440099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 15440099 is about 3929.3891382758. The cubic root of 15440099 is about 249.0099456789.

The spelling of 15440099 in words is "fifteen million, four hundred forty thousand, ninety-nine".