206156 has 6 divisors (see below), whose sum is σ = 360780. Its totient is φ = 103076.

The previous prime is 206153. The next prime is 206177. The reversal of 206156 is 651602.

It is a super-3 number, since 3×206156³ = 26285073274333248, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (206153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25766 + ... + 25773.

It is an arithmetic number, because the mean of its divisors is an integer number (60130).

2²⁰⁶¹⁵⁶ is an apocalyptic number.

It is an amenable number.

206156 is a deficient number, since it is larger than the sum of its proper divisors (154624).

206156 is a wasteful number, since it uses less digits than its factorization.

206156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51543 (or 51541 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 206156 is about 454.0440507264. The cubic root of 206156 is about 59.0743102741.

Adding to 206156 its reverse (651602), we get a palindrome (857758).

The spelling of 206156 in words is "two hundred six thousand, one hundred fifty-six".