156845 has 16 divisors (see below), whose sum is σ = 215040. Its totient is φ = 108864.

The previous prime is 156841. The next prime is 156887. The reversal of 156845 is 548651.

156845 = T₃ + T₄ + ... + T₉₇.

It is a happy number.

156845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 156845 - 2² = 156841 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1172 + ... + 1298.

It is an arithmetic number, because the mean of its divisors is an integer number (13440).

2¹⁵⁶⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

156845 is a deficient number, since it is larger than the sum of its proper divisors (58195).

156845 is a wasteful number, since it uses less digits than its factorization.

156845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164.

The product of its digits is 4800, while the sum is 29.

The square root of 156845 is about 396.0366144689. The cubic root of 156845 is about 53.9291480471.

Subtracting from 156845 its sum of digits (29), we obtain a square (156816 = 396²).

It can be divided in two parts, 156 and 845, that added together give a palindrome (1001).

The spelling of 156845 in words is "one hundred fifty-six thousand, eight hundred forty-five".