1444103989 has 2 divisors, whose sum is σ = 1444103990. Its totient is φ = 1444103988.

The previous prime is 1444103957. The next prime is 1444104019. The reversal of 1444103989 is 9893014441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1440809764 + 3294225 = 37958^2 + 1815^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444103989 - 2⁵ = 1444103957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444103909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722051994 + 722051995.

It is an arithmetic number, because the mean of its divisors is an integer number (722051995).

Almost surely, 2^1444103989 is an apocalyptic number.

It is an amenable number.

1444103989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444103989 is an equidigital number, since it uses as much as digits as its factorization.

1444103989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 1444103989 is about 38001.3682516827. The cubic root of 1444103989 is about 1130.3149953288.

The spelling of 1444103989 in words is "one billion, four hundred forty-four million, one hundred three thousand, nine hundred eighty-nine".