2251272 has 32 divisors (see below), whose sum is σ = 5925600. Its totient is φ = 710784.

The previous prime is 2251229. The next prime is 2251279. The reversal of 2251272 is 2721522.

It is a happy number.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2013 + ... + 2924.

It is an arithmetic number, because the mean of its divisors is an integer number (185175).

2^2251272 is an apocalyptic number.

It is an amenable number.

2251272 is an abundant number, since it is smaller than the sum of its proper divisors (3674328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2251272 is a wasteful number, since it uses less digits than its factorization.

2251272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4965 (or 4961 counting only the distinct ones).

The product of its digits is 560, while the sum is 21.

The square root of 2251272 is about 1500.4239400916. The cubic root of 2251272 is about 131.0617582664.

Adding to 2251272 its reverse (2721522), we get a palindrome (4972794).

The spelling of 2251272 in words is "two million, two hundred fifty-one thousand, two hundred seventy-two".