145565 has 8 divisors (see below), whose sum is σ = 199680. Its totient is φ = 99792.

The previous prime is 145549. The next prime is 145577. The reversal of 145565 is 565541.

145565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145565 - 2⁴ = 145549 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2045 + ... + 2114.

It is an arithmetic number, because the mean of its divisors is an integer number (24960).

2¹⁴⁵⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

145565 is a deficient number, since it is larger than the sum of its proper divisors (54115).

145565 is an equidigital number, since it uses as much as digits as its factorization.

145565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4171.

The product of its digits is 3000, while the sum is 26.

The square root of 145565 is about 381.5298153487. The cubic root of 145565 is about 52.6040265439.

The spelling of 145565 in words is "one hundred forty-five thousand, five hundred sixty-five".