509164227 has 24 divisors (see below), whose sum is σ = 864038448. Its totient is φ = 284846400.

The previous prime is 509164219. The next prime is 509164231. The reversal of 509164227 is 722461905.

509164227 is a `hidden beast` number, since 5 + 0 + 9 + 1 + 642 + 2 + 7 = 666.

It is not a de Polignac number, because 509164227 - 2³ = 509164219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 509164191 and 509164200.

It is not an unprimeable number, because it can be changed into a prime (509164027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196524 + ... + 199097.

It is an arithmetic number, because the mean of its divisors is an integer number (36001602).

Almost surely, 2^509164227 is an apocalyptic number.

509164227 is a deficient number, since it is larger than the sum of its proper divisors (354874221).

509164227 is a wasteful number, since it uses less digits than its factorization.

509164227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395651 (or 395648 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 509164227 is about 22564.6676687249. The cubic root of 509164227 is about 798.5202996920.

The spelling of 509164227 in words is "five hundred nine million, one hundred sixty-four thousand, two hundred twenty-seven".