7444121 has 4 divisors (see below), whose sum is σ = 7450212. Its totient is φ = 7438032.

The previous prime is 7444109. The next prime is 7444153. The reversal of 7444121 is 1214447.

It is a happy 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: 1214447 = 13 ⋅93419.

It can be written as a sum of positive squares in 2 ways, for example, as 3200521 + 4243600 = 1789^2 + 2060^2 .

It is a cyclic number.

It is not a de Polignac number, because 7444121 - 2¹⁴ = 7427737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7444621) 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, 506 + ... + 3891.

It is an arithmetic number, because the mean of its divisors is an integer number (1862553).

Almost surely, 2^7444121 is an apocalyptic number.

It is an amenable number.

7444121 is a deficient number, since it is larger than the sum of its proper divisors (6091).

7444121 is a wasteful number, since it uses less digits than its factorization.

7444121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6090.

The product of its digits is 896, while the sum is 23.

The square root of 7444121 is about 2728.3916507716. The cubic root of 7444121 is about 195.2560388605.

Adding to 7444121 its reverse (1214447), we get a palindrome (8658568).

The spelling of 7444121 in words is "seven million, four hundred forty-four thousand, one hundred twenty-one".