11272903 has 4 divisors (see below), whose sum is σ = 11512800. Its totient is φ = 11033008.

The previous prime is 11272897. The next prime is 11272907. The reversal of 11272903 is 30927211.

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

It is a cyclic number.

It is not a de Polignac number, because 11272903 - 2¹⁷ = 11141831 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 (11272907) 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, 119878 + ... + 119971.

It is an arithmetic number, because the mean of its divisors is an integer number (2878200).

Almost surely, 2^11272903 is an apocalyptic number.

11272903 is a deficient number, since it is larger than the sum of its proper divisors (239897).

11272903 is an equidigital number, since it uses as much as digits as its factorization.

11272903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239896.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 11272903 is about 3357.5144080108. The cubic root of 11272903 is about 224.2221899811. Note that the first 3 decimals are identical.

The spelling of 11272903 in words is "eleven million, two hundred seventy-two thousand, nine hundred three".