561208 has 32 divisors (see below), whose sum is σ = 1134000. Its totient is φ = 259840.

The previous prime is 561199. The next prime is 561229. The reversal of 561208 is 802165.

It is a happy number.

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, 9483 + ... + 9541.

2⁵⁶¹²⁰⁸ is an apocalyptic number.

561208 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

561208 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561208 is a wasteful number, since it uses less digits than its factorization.

561208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 561208 is about 749.1381715011. The cubic root of 561208 is about 82.4849314383.

The spelling of 561208 in words is "five hundred sixty-one thousand, two hundred eight".