156906 has 24 divisors (see below), whose sum is σ = 355680. Its totient is φ = 49896.

The previous prime is 156901. The next prime is 156913. The reversal of 156906 is 609651.

156906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 156906.

It is not an unprimeable number, because it can be changed into a prime (156901) by changing a digit.

156906 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225 + ... + 603.

It is an arithmetic number, because the mean of its divisors is an integer number (14820).

2¹⁵⁶⁹⁰⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177840).

156906 is an abundant number, since it is smaller than the sum of its proper divisors (198774).

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

156906 is a wasteful number, since it uses less digits than its factorization.

156906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 156906 is about 396.1136200637. The cubic root of 156906 is about 53.9361384976.

The spelling of 156906 in words is "one hundred fifty-six thousand, nine hundred six".