2251271 has 8 divisors (see below), whose sum is σ = 2481024. Its totient is φ = 2025720.

The previous prime is 2251229. The next prime is 2251279. The reversal of 2251271 is 1721522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2251271 - 2¹⁰ = 2250247 is a prime.

It is a super-2 number, since 2×2251271² = 10136442230882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140 + ... + 2126.

It is an arithmetic number, because the mean of its divisors is an integer number (310128).

2^2251271 is an apocalyptic number.

2251271 is a deficient number, since it is larger than the sum of its proper divisors (229753).

2251271 is a wasteful number, since it uses less digits than its factorization.

2251271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101.

The product of its digits is 280, while the sum is 20.

The square root of 2251271 is about 1500.4236068524. The cubic root of 2251271 is about 131.0617388608.

Adding to 2251271 its reverse (1721522), we get a palindrome (3972793).

The spelling of 2251271 in words is "two million, two hundred fifty-one thousand, two hundred seventy-one".