145806 has 16 divisors (see below), whose sum is σ = 307200. Its totient is φ = 46008.

The previous prime is 145799. The next prime is 145807. The reversal of 145806 is 608541.

145806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145806.

It is not an unprimeable number, because it can be changed into a prime (145807) by changing a digit.

145806 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 7 ways as a sum of consecutive naturals, for example, 526 + ... + 753.

It is an arithmetic number, because the mean of its divisors is an integer number (19200).

2¹⁴⁵⁸⁰⁶ is an apocalyptic number.

145806 is the 242-nd centered pentagonal number.

145806 is an abundant number, since it is smaller than the sum of its proper divisors (161394).

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

145806 is a wasteful number, since it uses less digits than its factorization.

145806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 145806 is about 381.8455185019. The cubic root of 145806 is about 52.6330412576.

The spelling of 145806 in words is "one hundred forty-five thousand, eight hundred six".