145566 has 12 divisors (see below), whose sum is σ = 315432. Its totient is φ = 48516.

The previous prime is 145549. The next prime is 145577. The reversal of 145566 is 665541.

It is a happy number.

145566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 10 and base 16.

It is a congruent number.

It is an unprimeable number.

145566 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 5 ways as a sum of consecutive naturals, for example, 4026 + ... + 4061.

It is an arithmetic number, because the mean of its divisors is an integer number (26286).

2¹⁴⁵⁵⁶⁶ is an apocalyptic number.

145566 is an abundant number, since it is smaller than the sum of its proper divisors (169866).

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

145566 is a wasteful number, since it uses less digits than its factorization.

145566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8095 (or 8092 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 145566 is about 381.5311258600. The cubic root of 145566 is about 52.6041470030.

It can be divided in two parts, 1455 and 66, that added together give a square (1521 = 39²).

The spelling of 145566 in words is "one hundred forty-five thousand, five hundred sixty-six".