509074 has 4 divisors (see below), whose sum is σ = 763614. Its totient is φ = 254536.

The previous prime is 509071. The next prime is 509087. The reversal of 509074 is 470905.

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

It can be written as a sum of positive squares in only one way, i.e., 368449 + 140625 = 607^2 + 375^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (509071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127267 + ... + 127270.

2⁵⁰⁹⁰⁷⁴ is an apocalyptic number.

509074 is a deficient number, since it is larger than the sum of its proper divisors (254540).

509074 is a wasteful number, since it uses less digits than its factorization.

509074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254539.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 509074 is about 713.4942186171. The cubic root of 509074 is about 79.8473129353.

Adding to 509074 its reverse (470905), we get a palindrome (979979).

The spelling of 509074 in words is "five hundred nine thousand, seventy-four".