1444836121 has 3 divisors (see below), whose sum is σ = 1444874133. Its totient is φ = 1444798110.

The previous prime is 1444836109. The next prime is 1444836157. The reversal of 1444836121 is 1216384441.

The square root of 1444836121 is 38011.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1216384441 = 25243 ⋅48187.

It is not a de Polignac number, because 1444836121 - 2¹³ = 1444827929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1444836161) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 19006 + ... + 57016.

It is an arithmetic number, because the mean of its divisors is an integer number (481624711).

Almost surely, 2^1444836121 is an apocalyptic number.

1444836121 is the 38011-st square number.

1444836121 is the 19006-th centered octagonal number.

It is an amenable number.

1444836121 is a deficient number, since it is larger than the sum of its proper divisors (38012).

1444836121 is an frugal number, since it uses more digits than its factorization.

1444836121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76022 (or 38011 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The cubic root of 1444836121 is about 1130.5059787979.

The spelling of 1444836121 in words is "one billion, four hundred forty-four million, eight hundred thirty-six thousand, one hundred twenty-one".