1444521 has 8 divisors (see below), whose sum is σ = 2074240. Its totient is φ = 888912.

The previous prime is 1444501. The next prime is 1444523. The reversal of 1444521 is 1254441.

It is a happy number.

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

It is not a de Polignac number, because 1444521 - 2⁵ = 1444489 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1444523) 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, 18481 + ... + 18558.

It is an arithmetic number, because the mean of its divisors is an integer number (259280).

2^1444521 is an apocalyptic number.

It is an amenable number.

1444521 is a deficient number, since it is larger than the sum of its proper divisors (629719).

1444521 is a wasteful number, since it uses less digits than its factorization.

1444521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37055.

The product of its digits is 640, while the sum is 21.

The square root of 1444521 is about 1201.8822737689. The cubic root of 1444521 is about 113.0423784453.

Adding to 1444521 its reverse (1254441), we get a palindrome (2698962).

It can be divided in two parts, 144452 and 1, that added together give a triangular number (144453 = T₅₃₇).

The spelling of 1444521 in words is "one million, four hundred forty-four thousand, five hundred twenty-one".