11251271 has 4 divisors (see below), whose sum is σ = 11405472. Its totient is φ = 11097072.

The previous prime is 11251213. The next prime is 11251277. The reversal of 11251271 is 17215211.

It is a happy number.

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 11251271 - 2¹⁰ = 11250247 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 (11251277) 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, 76991 + ... + 77136.

It is an arithmetic number, because the mean of its divisors is an integer number (2851368).

Almost surely, 2^11251271 is an apocalyptic number.

11251271 is a deficient number, since it is larger than the sum of its proper divisors (154201).

11251271 is an equidigital number, since it uses as much as digits as its factorization.

11251271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154200.

The product of its digits is 140, while the sum is 20.

The square root of 11251271 is about 3354.2914303918. The cubic root of 11251271 is about 224.0786753293.

Adding to 11251271 its reverse (17215211), we get a palindrome (28466482).

The spelling of 11251271 in words is "eleven million, two hundred fifty-one thousand, two hundred seventy-one".