2144431451 has 2 divisors, whose sum is σ = 2144431452. Its totient is φ = 2144431450.

The previous prime is 2144431441. The next prime is 2144431453. The reversal of 2144431451 is 1541344412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2144431451 is a prime.

Together with 2144431453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2144431453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072215725 + 1072215726.

It is an arithmetic number, because the mean of its divisors is an integer number (1072215726).

Almost surely, 2^2144431451 is an apocalyptic number.

2144431451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144431451 is an equidigital number, since it uses as much as digits as its factorization.

2144431451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 29.

The square root of 2144431451 is about 46308.0063379973. The cubic root of 2144431451 is about 1289.5476351901.

Adding to 2144431451 its reverse (1541344412), we get a palindrome (3685775863).

The spelling of 2144431451 in words is "two billion, one hundred forty-four million, four hundred thirty-one thousand, four hundred fifty-one".