9009010903 has 4 divisors (see below), whose sum is σ = 9028553688. Its totient is φ = 8989468120.

The previous prime is 9009010859. The next prime is 9009010919. The reversal of 9009010903 is 3090109009.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9009010903 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 (9009010103) 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, 9770701 + ... + 9771622.

It is an arithmetic number, because the mean of its divisors is an integer number (2257138422).

Almost surely, 2^9009010903 is an apocalyptic number.

9009010903 is a deficient number, since it is larger than the sum of its proper divisors (19542785).

9009010903 is a wasteful number, since it uses less digits than its factorization.

9009010903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19542784.

The product of its (nonzero) digits is 2187, while the sum is 31.

The square root of 9009010903 is about 94915.8095524660. The cubic root of 9009010903 is about 2080.7777927430. Note that the first 4 decimals are identical.

The spelling of 9009010903 in words is "nine billion, nine million, ten thousand, nine hundred three".