573109645 has 4 divisors (see below), whose sum is σ = 687731580. Its totient is φ = 458487712.

The previous prime is 573109591. The next prime is 573109697. The reversal of 573109645 is 546901375.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 269583561 + 303526084 = 16419^2 + 17422^2 .

It is a cyclic number.

It is not a de Polignac number, because 573109645 - 2¹³ = 573101453 is a prime.

It is a super-3 number, since 3×573109645³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 573109598 and 573109607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57310960 + ... + 57310969.

It is an arithmetic number, because the mean of its divisors is an integer number (171932895).

Almost surely, 2^573109645 is an apocalyptic number.

It is an amenable number.

573109645 is a deficient number, since it is larger than the sum of its proper divisors (114621935).

573109645 is a wasteful number, since it uses less digits than its factorization.

573109645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114621934.

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 573109645 is about 23939.7085404146. The cubic root of 573109645 is about 830.6394863652.

The spelling of 573109645 in words is "five hundred seventy-three million, one hundred nine thousand, six hundred forty-five".