1444463137 has 8 divisors (see below), whose sum is σ = 1555873704. Its totient is φ = 1333095168.

The previous prime is 1444463129. The next prime is 1444463159. The reversal of 1444463137 is 7313644441.

It can be written as a sum of positive squares in 4 ways, for example, as 64786401 + 1379676736 = 8049^2 + 37144^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1444463137 - 2³ = 1444463129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1444463096 and 1444463105.

It is not an unprimeable number, because it can be changed into a prime (1444463177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113193 + ... + 125305.

It is an arithmetic number, because the mean of its divisors is an integer number (194484213).

Almost surely, 2^1444463137 is an apocalyptic number.

It is an amenable number.

1444463137 is a deficient number, since it is larger than the sum of its proper divisors (111410567).

1444463137 is a wasteful number, since it uses less digits than its factorization.

1444463137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21299.

The product of its digits is 96768, while the sum is 37.

The square root of 1444463137 is about 38006.0934193453. The cubic root of 1444463137 is about 1130.4086905023.

The spelling of 1444463137 in words is "one billion, four hundred forty-four million, four hundred sixty-three thousand, one hundred thirty-seven".