15040005 has 16 divisors (see below), whose sum is σ = 24131520. Its totient is φ = 7998848.

The previous prime is 15039967. The next prime is 15040007. The reversal of 15040005 is 50004051.

It is a cyclic number.

It is not a de Polignac number, because 15040005 - 2⁷ = 15039877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15040007) 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, 5089 + ... + 7481.

It is an arithmetic number, because the mean of its divisors is an integer number (1508220).

Almost surely, 2^15040005 is an apocalyptic number.

15040005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15040005 is a deficient number, since it is larger than the sum of its proper divisors (9091515).

15040005 is a wasteful number, since it uses less digits than its factorization.

15040005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 15040005 is about 3878.1445305713. The cubic root of 15040005 is about 246.8402590648.

Adding to 15040005 its reverse (50004051), we get a palindrome (65044056).

The spelling of 15040005 in words is "fifteen million, forty thousand, five".