1053444121 has 4 divisors (see below), whose sum is σ = 1058085072. Its totient is φ = 1048803172.

The previous prime is 1053444109. The next prime is 1053444127. The reversal of 1053444121 is 1214443501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1053444121 - 2⁵ = 1053444089 is a prime.

It is a super-2 number, since 2×1053444121² = 2219489032138925282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1053444127) 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, 2320135 + ... + 2320588.

It is an arithmetic number, because the mean of its divisors is an integer number (264521268).

Almost surely, 2^1053444121 is an apocalyptic number.

It is an amenable number.

1053444121 is a deficient number, since it is larger than the sum of its proper divisors (4640951).

1053444121 is an equidigital number, since it uses as much as digits as its factorization.

1053444121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4640950.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1053444121 is about 32456.8039246011. The cubic root of 1053444121 is about 1017.5064430205.

Adding to 1053444121 its reverse (1214443501), we get a palindrome (2267887622).

The spelling of 1053444121 in words is "one billion, fifty-three million, four hundred forty-four thousand, one hundred twenty-one".