2251143 has 12 divisors (see below), whose sum is σ = 3265080. Its totient is φ = 1494576.

The previous prime is 2251129. The next prime is 2251147. The reversal of 2251143 is 3411522.

It is not a de Polignac number, because 2251143 - 2⁵ = 2251111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3180 + ... + 3822.

It is an arithmetic number, because the mean of its divisors is an integer number (272090).

2^2251143 is an apocalyptic number.

2251143 is a deficient number, since it is larger than the sum of its proper divisors (1013937).

2251143 is a wasteful number, since it uses less digits than its factorization.

2251143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038 (or 1035 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2251143 is about 1500.3809516253. The cubic root of 2251143 is about 131.0592548980.

Adding to 2251143 its reverse (3411522), we get a palindrome (5662665).

The spelling of 2251143 in words is "two million, two hundred fifty-one thousand, one hundred forty-three".