9000015 has 32 divisors (see below), whose sum is σ = 15828480. Its totient is φ = 4346496.

The previous prime is 9000011. The next prime is 9000041. The reversal of 9000015 is 5100009.

It is not a de Polignac number, because 9000015 - 2² = 9000011 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 8999958 and 9000003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9000011) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5869 + ... + 7241.

It is an arithmetic number, because the mean of its divisors is an integer number (494640).

Almost surely, 2^9000015 is an apocalyptic number.

9000015 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

9000015 is a deficient number, since it is larger than the sum of its proper divisors (6828465).

9000015 is a wasteful number, since it uses less digits than its factorization.

9000015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423.

The product of its (nonzero) digits is 45, while the sum is 15.

The square root of 9000015 is about 3000.0024999990. The cubic root of 9000015 is about 208.0084978653.

Subtracting from 9000015 its sum of digits (15), we obtain a square (9000000 = 3000²).

The spelling of 9000015 in words is "nine million, fifteen", and thus it is an aban number and an uban number.