144839873 has 2 divisors, whose sum is σ = 144839874. Its totient is φ = 144839872.

The previous prime is 144839861. The next prime is 144839899. The reversal of 144839873 is 378938441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140375104 + 4464769 = 11848^2 + 2113^2 .

It is a cyclic number.

It is not a de Polignac number, because 144839873 - 2⁴ = 144839857 is a prime.

It is a super-2 number, since 2×144839873² = 41957177621312258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144839573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72419936 + 72419937.

It is an arithmetic number, because the mean of its divisors is an integer number (72419937).

Almost surely, 2^144839873 is an apocalyptic number.

It is an amenable number.

144839873 is a deficient number, since it is larger than the sum of its proper divisors (1).

144839873 is an equidigital number, since it uses as much as digits as its factorization.

144839873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 47.

The square root of 144839873 is about 12034.9438303633. The cubic root of 144839873 is about 525.1653272210.

The spelling of 144839873 in words is "one hundred forty-four million, eight hundred thirty-nine thousand, eight hundred seventy-three".