545223205045 has 8 divisors (see below), whose sum is σ = 654274884024. Its totient is φ = 436173872064.

The previous prime is 545223205031. The next prime is 545223205061. The reversal of 545223205045 is 540502322545.

It can be written as a sum of positive squares in 4 ways, for example, as 58490938801 + 486732266244 = 241849^2 + 697662^2 .

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 545223205045 - 2¹⁹ = 545222680757 is a prime.

It is a super-2 number, since 2×545223205045² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545223204995 and 545223205013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26614 + ... + 1044583.

It is an arithmetic number, because the mean of its divisors is an integer number (81784360503).

Almost surely, 2^545223205045 is an apocalyptic number.

It is an amenable number.

545223205045 is a deficient number, since it is larger than the sum of its proper divisors (109051678979).

545223205045 is a wasteful number, since it uses less digits than its factorization.

545223205045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172999.

The product of its (nonzero) digits is 240000, while the sum is 37.

The spelling of 545223205045 in words is "five hundred forty-five billion, two hundred twenty-three million, two hundred five thousand, forty-five".