1444131223 has 4 divisors (see below), whose sum is σ = 1448687160. Its totient is φ = 1439575288.

The previous prime is 1444131197. The next prime is 1444131281. The reversal of 1444131223 is 3221314441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3221314441 = 5233 ⋅615577.

It is a cyclic number.

It is not a de Polignac number, because 1444131223 - 2⁵ = 1444131191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444131523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2277493 + ... + 2278126.

It is an arithmetic number, because the mean of its divisors is an integer number (362171790).

Almost surely, 2^1444131223 is an apocalyptic number.

1444131223 is a deficient number, since it is larger than the sum of its proper divisors (4555937).

1444131223 is an equidigital number, since it uses as much as digits as its factorization.

1444131223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4555936.

The product of its digits is 2304, while the sum is 25.

The square root of 1444131223 is about 38001.7265791964. The cubic root of 1444131223 is about 1130.3221007278.

Adding to 1444131223 its reverse (3221314441), we get a palindrome (4665445664).

The spelling of 1444131223 in words is "one billion, four hundred forty-four million, one hundred thirty-one thousand, two hundred twenty-three".