2252181 has 16 divisors (see below), whose sum is σ = 3158528. Its totient is φ = 1425600.

The previous prime is 2252179. The next prime is 2252189. The reversal of 2252181 is 1812522.

It is a happy number.

2252181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2252181 - 2¹ = 2252179 is a prime.

It is a super-2 number, since 2×2252181² = 10144638513522, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2252189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5475 + ... + 5871.

It is an arithmetic number, because the mean of its divisors is an integer number (197408).

2^2252181 is an apocalyptic number.

It is an amenable number.

2252181 is a deficient number, since it is larger than the sum of its proper divisors (906347).

2252181 is a wasteful number, since it uses less digits than its factorization.

2252181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492.

The product of its digits is 320, while the sum is 21.

The square root of 2252181 is about 1500.7268239090. The cubic root of 2252181 is about 131.0793955706.

The spelling of 2252181 in words is "two million, two hundred fifty-two thousand, one hundred eighty-one".