54105415340121 has 12 divisors (see below), whose sum is σ = 78158498506660. Its totient is φ = 36067400629920.

The previous prime is 54105415340117. The next prime is 54105415340147. The reversal of 54105415340121 is 12104351450145.

54105415340121 is a `hidden beast` number, since 5 + 4 + 1 + 0 + 541 + 53 + 40 + 1 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 31138509275721 + 22966906064400 = 5580189^2 + 4792380^2 .

It is not a de Polignac number, because 54105415340121 - 2² = 54105415340117 is a prime.

It is a super-2 number, since 2×54105415340121² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54105415340021) 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, 239569486 + ... + 239795223.

Almost surely, 2^{54105415340121} is an apocalyptic number.

It is an amenable number.

54105415340121 is a deficient number, since it is larger than the sum of its proper divisors (24053083166539).

54105415340121 is a wasteful number, since it uses less digits than its factorization.

54105415340121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479377256 (or 479377253 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

Adding to 54105415340121 its reverse (12104351450145), we get a palindrome (66209766790266).

The spelling of 54105415340121 in words is "fifty-four trillion, one hundred five billion, four hundred fifteen million, three hundred forty thousand, one hundred twenty-one".