9001005 has 32 divisors (see below), whose sum is σ = 16020480. Its totient is φ = 4285440.

The previous prime is 9001001. The next prime is 9001033. The reversal of 9001005 is 5001009.

It is not a de Polignac number, because 9001005 - 2² = 9001001 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 (9001001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5301 + ... + 6789.

It is an arithmetic number, because the mean of its divisors is an integer number (500640).

Almost surely, 2^9001005 is an apocalyptic number.

It is an amenable number.

9001005 is a deficient number, since it is larger than the sum of its proper divisors (7019475).

9001005 is a wasteful number, since it uses less digits than its factorization.

9001005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541.

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

The square root of 9001005 is about 3000.1674953242. The cubic root of 9001005 is about 208.0161245512.

The spelling of 9001005 in words is "nine million, one thousand, five".