1444423241215 has 4 divisors (see below), whose sum is σ = 1733307889464. Its totient is φ = 1155538592968.

The previous prime is 1444423241161. The next prime is 1444423241249. The reversal of 1444423241215 is 5121423244441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1444423241215 - 2⁷ = 1444423241087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144442324117 + ... + 144442324126.

It is an arithmetic number, because the mean of its divisors is an integer number (433326972366).

Almost surely, 2^{1444423241215} is an apocalyptic number.

1444423241215 is a deficient number, since it is larger than the sum of its proper divisors (288884648249).

1444423241215 is an equidigital number, since it uses as much as digits as its factorization.

1444423241215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288884648248.

The product of its digits is 122880, while the sum is 37.

Adding to 1444423241215 its reverse (5121423244441), we get a palindrome (6565846485656).

The spelling of 1444423241215 in words is "one trillion, four hundred forty-four billion, four hundred twenty-three million, two hundred forty-one thousand, two hundred fifteen".