156212 has 18 divisors (see below), whose sum is σ = 318402. Its totient is φ = 66864.

The previous prime is 156157. The next prime is 156217. The reversal of 156212 is 212651.

It can be written as a sum of positive squares in only one way, i.e., 132496 + 23716 = 364^2 + 154^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156217) by changing a digit.

156212 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 203 + ... + 594.

It is an arithmetic number, because the mean of its divisors is an integer number (17689).

2¹⁵⁶²¹² is an apocalyptic number.

It is an amenable number.

156212 is an abundant number, since it is smaller than the sum of its proper divisors (162190).

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

156212 is a wasteful number, since it uses less digits than its factorization.

156212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 806 counting only the distinct ones).

The product of its digits is 120, while the sum is 17.

The square root of 156212 is about 395.2366379778. The cubic root of 156212 is about 53.8565005758.

Adding to 156212 its reverse (212651), we get a palindrome (368863).

The spelling of 156212 in words is "one hundred fifty-six thousand, two hundred twelve".