502109 has 4 divisors (see below), whose sum is σ = 503904. Its totient is φ = 500316.

The previous prime is 502093. The next prime is 502121. The reversal of 502109 is 901205.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 901205 = 5 ⋅180241.

It is a cyclic number.

It is not a de Polignac number, because 502109 - 2⁴ = 502093 is a prime.

It is a super-2 number, since 2×502109² = 504226895762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377 + ... + 1070.

It is an arithmetic number, because the mean of its divisors is an integer number (125976).

2⁵⁰²¹⁰⁹ is an apocalyptic number.

It is an amenable number.

502109 is a deficient number, since it is larger than the sum of its proper divisors (1795).

502109 is a wasteful number, since it uses less digits than its factorization.

502109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 502109 is about 708.5965001325. The cubic root of 502109 is about 79.4814903574.

The spelling of 502109 in words is "five hundred two thousand, one hundred nine".