11297271 has 4 divisors (see below), whose sum is σ = 15063032. Its totient is φ = 7531512.

The previous prime is 11297239. The next prime is 11297281. The reversal of 11297271 is 17279211.

It is a happy number.

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

It is not a de Polignac number, because 11297271 - 2⁵ = 11297239 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 (11297281) 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, 1882876 + ... + 1882881.

It is an arithmetic number, because the mean of its divisors is an integer number (3765758).

Almost surely, 2^11297271 is an apocalyptic number.

11297271 is a deficient number, since it is larger than the sum of its proper divisors (3765761).

11297271 is an equidigital number, since it uses as much as digits as its factorization.

11297271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3765760.

The product of its digits is 1764, while the sum is 30.

The square root of 11297271 is about 3361.1413240148. The cubic root of 11297271 is about 224.3836365367.

The spelling of 11297271 in words is "eleven million, two hundred ninety-seven thousand, two hundred seventy-one".