2251230543 has 8 divisors (see below), whose sum is σ = 3335156400. Its totient is φ = 1500820344.

The previous prime is 2251230539. The next prime is 2251230563. The reversal of 2251230543 is 3450321522.

It is a happy number.

2251230543 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 2251230543 - 2² = 2251230539 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 83378909 = 2251230543 / (2 + 2 + 5 + 1 + 2 + 3 + 0 + 5 + 4 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251230563) 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, 41689428 + ... + 41689481.

It is an arithmetic number, because the mean of its divisors is an integer number (416894550).

Almost surely, 2^2251230543 is an apocalyptic number.

2251230543 is a deficient number, since it is larger than the sum of its proper divisors (1083925857).

2251230543 is an equidigital number, since it uses as much as digits as its factorization.

2251230543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83378918 (or 83378912 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2251230543 is about 47447.1341916453. The cubic root of 2251230543 is about 1310.6095376409.

The spelling of 2251230543 in words is "two billion, two hundred fifty-one million, two hundred thirty thousand, five hundred forty-three".