545312526121 has 16 divisors (see below), whose sum is σ = 596635509888. Its totient is φ = 494281756800.

The previous prime is 545312526107. The next prime is 545312526127. The reversal of 545312526121 is 121625213545.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545312526121 is a prime.

It is a super-2 number, since 2×545312526121² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (545312526127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18206460 + ... + 18236386.

It is an arithmetic number, because the mean of its divisors is an integer number (37289719368).

Almost surely, 2^545312526121 is an apocalyptic number.

It is an amenable number.

545312526121 is a deficient number, since it is larger than the sum of its proper divisors (51322983767).

545312526121 is a wasteful number, since it uses less digits than its factorization.

545312526121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34752.

The product of its digits is 72000, while the sum is 37.

Adding to 545312526121 its reverse (121625213545), we get a palindrome (666937739666).

The spelling of 545312526121 in words is "five hundred forty-five billion, three hundred twelve million, five hundred twenty-six thousand, one hundred twenty-one".