9001013 has 4 divisors (see below), whose sum is σ = 10286880. Its totient is φ = 7715148.

The previous prime is 9001001. The next prime is 9001033. The reversal of 9001013 is 3101009.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3101009 = 19 ⋅163211.

It is not a de Polignac number, because 9001013 - 2⁴ = 9000997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9001033) 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, 642923 + ... + 642936.

It is an arithmetic number, because the mean of its divisors is an integer number (2571720).

Almost surely, 2^9001013 is an apocalyptic number.

It is an amenable number.

9001013 is a deficient number, since it is larger than the sum of its proper divisors (1285867).

9001013 is a wasteful number, since it uses less digits than its factorization.

9001013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285866.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 9001013 is about 3000.1688285828. The cubic root of 9001013 is about 208.0161861788.

The spelling of 9001013 in words is "nine million, one thousand, thirteen".