518574145 has 4 divisors (see below), whose sum is σ = 622288980. Its totient is φ = 414859312.

The previous prime is 518574113. The next prime is 518574157. The reversal of 518574145 is 541475815.

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 319086769 + 199487376 = 17863^2 + 14124^2 .

It is a cyclic number.

It is not a de Polignac number, because 518574145 - 2⁵ = 518574113 is a prime.

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 = 518574098 and 518574107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51857410 + ... + 51857419.

It is an arithmetic number, because the mean of its divisors is an integer number (155572245).

Almost surely, 2^518574145 is an apocalyptic number.

It is an amenable number.

518574145 is a deficient number, since it is larger than the sum of its proper divisors (103714835).

518574145 is a wasteful number, since it uses less digits than its factorization.

518574145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103714834.

The product of its digits is 112000, while the sum is 40.

The square root of 518574145 is about 22772.2231018405. The cubic root of 518574145 is about 803.4094824979.

The spelling of 518574145 in words is "five hundred eighteen million, five hundred seventy-four thousand, one hundred forty-five".