15240045 has 16 divisors (see below), whose sum is σ = 24679872. Its totient is φ = 8029440.

The previous prime is 15240037. The next prime is 15240047. The reversal of 15240045 is 54004251.

It is not a de Polignac number, because 15240045 - 2³ = 15240037 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15240047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4876 + ... + 7365.

It is an arithmetic number, because the mean of its divisors is an integer number (1542492).

Almost surely, 2^15240045 is an apocalyptic number.

15240045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15240045 is a deficient number, since it is larger than the sum of its proper divisors (9439827).

15240045 is a wasteful number, since it uses less digits than its factorization.

15240045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12332.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 15240045 is about 3903.8500227340. The cubic root of 15240045 is about 247.9298112592.

Adding to 15240045 its reverse (54004251), we get a palindrome (69244296).

The spelling of 15240045 in words is "fifteen million, two hundred forty thousand, forty-five".