144839899 has 2 divisors, whose sum is σ = 144839900. Its totient is φ = 144839898.

The previous prime is 144839873. The next prime is 144839911. The reversal of 144839899 is 998938441.

It is a strong prime.

It is an emirp because it is prime and its reverse (998938441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144839899 - 2¹⁷ = 144708827 is a prime.

It is not a weakly prime, because it can be changed into another prime (144836899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72419949 + 72419950.

It is an arithmetic number, because the mean of its divisors is an integer number (72419950).

Almost surely, 2^144839899 is an apocalyptic number.

144839899 is a deficient number, since it is larger than the sum of its proper divisors (1).

144839899 is an equidigital number, since it uses as much as digits as its factorization.

144839899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 55.

The square root of 144839899 is about 12034.9449105511. The cubic root of 144839899 is about 525.1653586449.

The spelling of 144839899 in words is "one hundred forty-four million, eight hundred thirty-nine thousand, eight hundred ninety-nine".