1444312231 has 8 divisors (see below), whose sum is σ = 1531149264. Its totient is φ = 1357683840.

The previous prime is 1444312229. The next prime is 1444312253. The reversal of 1444312231 is 1322134441.

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 1444312231 - 2¹ = 1444312229 is a prime.

It is a super-2 number, since 2×1444312231² = 4172075641232394722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1444312196 and 1444312205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444312031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37785 + ... + 65698.

It is an arithmetic number, because the mean of its divisors is an integer number (191393658).

Almost surely, 2^1444312231 is an apocalyptic number.

1444312231 is a deficient number, since it is larger than the sum of its proper divisors (86837033).

1444312231 is a wasteful number, since it uses less digits than its factorization.

1444312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104321.

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

The square root of 1444312231 is about 38004.1080805747. The cubic root of 1444312231 is about 1130.3693237668.

Adding to 1444312231 its reverse (1322134441), we get a palindrome (2766446672).

The spelling of 1444312231 in words is "one billion, four hundred forty-four million, three hundred twelve thousand, two hundred thirty-one".