545355121 has 8 divisors (see below), whose sum is σ = 597346920. Its totient is φ = 495575808.

The previous prime is 545355101. The next prime is 545355127. The reversal of 545355121 is 121553545.

It can be written as a sum of positive squares in 4 ways, for example, as 18147600 + 527207521 = 4260^2 + 22961^2 .

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 545355121 - 2⁵ = 545355089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545355127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552606 + ... + 553591.

It is an arithmetic number, because the mean of its divisors is an integer number (74668365).

Almost surely, 2^545355121 is an apocalyptic number.

It is an amenable number.

545355121 is a deficient number, since it is larger than the sum of its proper divisors (51991799).

545355121 is a wasteful number, since it uses less digits than its factorization.

545355121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106243.

The product of its digits is 15000, while the sum is 31.

The square root of 545355121 is about 23352.8396774354. The cubic root of 545355121 is about 817.0082936854.

The spelling of 545355121 in words is "five hundred forty-five million, three hundred fifty-five thousand, one hundred twenty-one".