144899903 has 2 divisors, whose sum is σ = 144899904. Its totient is φ = 144899902.

The previous prime is 144899879. The next prime is 144899917. The reversal of 144899903 is 309998441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144899903 - 2⁸ = 144899647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144899003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72449951 + 72449952.

It is an arithmetic number, because the mean of its divisors is an integer number (72449952).

Almost surely, 2^144899903 is an apocalyptic number.

144899903 is a deficient number, since it is larger than the sum of its proper divisors (1).

144899903 is an equidigital number, since it uses as much as digits as its factorization.

144899903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 144899903 is about 12037.4375595473. The cubic root of 144899903 is about 525.2378701370.

The spelling of 144899903 in words is "one hundred forty-four million, eight hundred ninety-nine thousand, nine hundred three".