14555533121 has 12 divisors (see below), whose sum is σ = 14817340692. Its totient is φ = 14298200928.

The previous prime is 14555533073. The next prime is 14555533133. The reversal of 14555533121 is 12133555541.

It can be written as a sum of positive squares in 2 ways, for example, as 3701018896 + 10854514225 = 60836^2 + 104185^2 .

It is a de Polignac number, because none of the positive numbers 2^k-14555533121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14555533151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1670051 + ... + 1678743.

It is an arithmetic number, because the mean of its divisors is an integer number (1234778391).

Almost surely, 2^14555533121 is an apocalyptic number.

It is an amenable number.

14555533121 is a deficient number, since it is larger than the sum of its proper divisors (261807571).

14555533121 is an frugal number, since it uses more digits than its factorization.

14555533121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9200 (or 9133 counting only the distinct ones).

The product of its digits is 45000, while the sum is 35.

The spelling of 14555533121 in words is "fourteen billion, five hundred fifty-five million, five hundred thirty-three thousand, one hundred twenty-one".