15240005 has 16 divisors (see below), whose sum is σ = 20029248. Its totient is φ = 11040000.

The previous prime is 15239999. The next prime is 15240013. The reversal of 15240005 is 50004251.

It is not a de Polignac number, because 15240005 - 2⁴ = 15239989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21710 + ... + 22400.

It is an arithmetic number, because the mean of its divisors is an integer number (1251828).

Almost surely, 2^15240005 is an apocalyptic number.

It is an amenable number.

15240005 is a deficient number, since it is larger than the sum of its proper divisors (4789243).

15240005 is a wasteful number, since it uses less digits than its factorization.

15240005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 15240005 is about 3903.8448995830. The cubic root of 15240005 is about 247.9295943482.

Adding to 15240005 its reverse (50004251), we get a palindrome (65244256).

The spelling of 15240005 in words is "fifteen million, two hundred forty thousand, five".