156436 has 24 divisors (see below), whose sum is σ = 323456. Its totient is φ = 64800.

The previous prime is 156421. The next prime is 156437. The reversal of 156436 is 634651.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 156436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156437) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 961 + ... + 1111.

2¹⁵⁶⁴³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 156436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161728).

156436 is an abundant number, since it is smaller than the sum of its proper divisors (167020).

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

156436 is a wasteful number, since it uses less digits than its factorization.

156436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 197 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 156436 is about 395.5199110032. The cubic root of 156436 is about 53.8822307681.

It can be divided in two parts, 1564 and 36, that added together give a square (1600 = 40²).

The spelling of 156436 in words is "one hundred fifty-six thousand, four hundred thirty-six".