2144893951 has 2 divisors, whose sum is σ = 2144893952. Its totient is φ = 2144893950.

The previous prime is 2144893943. The next prime is 2144893979. The reversal of 2144893951 is 1593984412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2144893951 - 2³ = 2144893943 is a prime.

It is a super-2 number, since 2×2144893951² = 9201140122072780802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2144893151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072446975 + 1072446976.

It is an arithmetic number, because the mean of its divisors is an integer number (1072446976).

Almost surely, 2^2144893951 is an apocalyptic number.

2144893951 is a deficient number, since it is larger than the sum of its proper divisors (1).

2144893951 is an equidigital number, since it uses as much as digits as its factorization.

2144893951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 2144893951 is about 46312.9998056701. Note that the first 3 decimals coincide. The cubic root of 2144893951 is about 1289.6403362039.

The spelling of 2144893951 in words is "two billion, one hundred forty-four million, eight hundred ninety-three thousand, nine hundred fifty-one".