509194 has 16 divisors (see below), whose sum is σ = 897408. Its totient is φ = 212112.

The previous prime is 509149. The next prime is 509203. The reversal of 509194 is 491905.

It is a nialpdrome in base 9.

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, 27 + ... + 1009.

It is an arithmetic number, because the mean of its divisors is an integer number (56088).

2⁵⁰⁹¹⁹⁴ is an apocalyptic number.

509194 is a deficient number, since it is larger than the sum of its proper divisors (388214).

509194 is a wasteful number, since it uses less digits than its factorization.

509194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 509194 is about 713.5783068452. The cubic root of 509194 is about 79.8535863682.

It can be divided in two parts, 509 and 194, that added together give a triangular number (703 = T₃₇).

The spelling of 509194 in words is "five hundred nine thousand, one hundred ninety-four".