2142254243 has 2 divisors, whose sum is σ = 2142254244. Its totient is φ = 2142254242.

The previous prime is 2142254221. The next prime is 2142254251. The reversal of 2142254243 is 3424522412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2142254243 - 2¹⁶ = 2142188707 is a prime.

It is not a weakly prime, because it can be changed into another prime (2142254203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071127121 + 1071127122.

It is an arithmetic number, because the mean of its divisors is an integer number (1071127122).

Almost surely, 2^2142254243 is an apocalyptic number.

2142254243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142254243 is an equidigital number, since it uses as much as digits as its factorization.

2142254243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 29.

The square root of 2142254243 is about 46284.4924677802. The cubic root of 2142254243 is about 1289.1110681708. Note that the first 3 decimals are identical.

Adding to 2142254243 its reverse (3424522412), we get a palindrome (5566776655).

The spelling of 2142254243 in words is "two billion, one hundred forty-two million, two hundred fifty-four thousand, two hundred forty-three".