545404121 has 8 divisors (see below), whose sum is σ = 558814464. Its totient is φ = 532069120.

The previous prime is 545404103. The next prime is 545404127. The reversal of 545404121 is 121404545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545404121 - 2¹⁰ = 545403097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545404127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4040 + ... + 33273.

It is an arithmetic number, because the mean of its divisors is an integer number (69851808).

Almost surely, 2^545404121 is an apocalyptic number.

It is an amenable number.

545404121 is a deficient number, since it is larger than the sum of its proper divisors (13410343).

545404121 is a wasteful number, since it uses less digits than its factorization.

545404121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37671.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 545404121 is about 23353.8887768183. Note that the first 3 decimals coincide. The cubic root of 545404121 is about 817.0327622723.

Adding to 545404121 its reverse (121404545), we get a palindrome (666808666).

The spelling of 545404121 in words is "five hundred forty-five million, four hundred four thousand, one hundred twenty-one".