202156 has 6 divisors (see below), whose sum is σ = 353780. Its totient is φ = 101076.

The previous prime is 202129. The next prime is 202183. The reversal of 202156 is 651202.

It is a happy number.

202156 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (202129) and next prime (202183).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25266 + ... + 25273.

2²⁰²¹⁵⁶ is an apocalyptic number.

It is an amenable number.

202156 is a deficient number, since it is larger than the sum of its proper divisors (151624).

202156 is a wasteful number, since it uses less digits than its factorization.

202156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50543 (or 50541 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 202156 is about 449.6176153133. The cubic root of 202156 is about 58.6897435614.

Adding to 202156 its reverse (651202), we get a palindrome (853358).

The spelling of 202156 in words is "two hundred two thousand, one hundred fifty-six".