9001505 has 4 divisors (see below), whose sum is σ = 10801812. Its totient is φ = 7201200.

The previous prime is 9001493. The next prime is 9001507. The reversal of 9001505 is 5051009.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5987809 + 3013696 = 2447^2 + 1736^2 .

It is not a de Polignac number, because 9001505 - 2²⁰ = 7952929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9001507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900146 + ... + 900155.

It is an arithmetic number, because the mean of its divisors is an integer number (2700453).

Almost surely, 2^9001505 is an apocalyptic number.

It is an amenable number.

9001505 is a deficient number, since it is larger than the sum of its proper divisors (1800307).

9001505 is a wasteful number, since it uses less digits than its factorization.

9001505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800306.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 9001505 is about 3000.2508228480. The cubic root of 9001505 is about 208.0199762003.

The spelling of 9001505 in words is "nine million, one thousand, five hundred five".