144139399 has 2 divisors, whose sum is σ = 144139400. Its totient is φ = 144139398.

The previous prime is 144139363. The next prime is 144139403. The reversal of 144139399 is 993931441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144139399 - 2⁹ = 144138887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144139349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72069699 + 72069700.

It is an arithmetic number, because the mean of its divisors is an integer number (72069700).

Almost surely, 2^144139399 is an apocalyptic number.

144139399 is a deficient number, since it is larger than the sum of its proper divisors (1).

144139399 is an equidigital number, since it uses as much as digits as its factorization.

144139399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 43.

The square root of 144139399 is about 12005.8068866695. The cubic root of 144139399 is about 524.3173579657.

The spelling of 144139399 in words is "one hundred forty-four million, one hundred thirty-nine thousand, three hundred ninety-nine".