145559 has 8 divisors (see below), whose sum is σ = 157440. Its totient is φ = 134136.

The previous prime is 145549. The next prime is 145577. The reversal of 145559 is 955541.

145559 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 a cyclic number.

It is not a de Polignac number, because 145559 - 2⁴ = 145543 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812 + ... + 974.

It is an arithmetic number, because the mean of its divisors is an integer number (19680).

2¹⁴⁵⁵⁵⁹ is an apocalyptic number.

145559 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

145559 is a deficient number, since it is larger than the sum of its proper divisors (11881).

145559 is a wasteful number, since it uses less digits than its factorization.

145559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229.

The product of its digits is 4500, while the sum is 29.

The square root of 145559 is about 381.5219521862. The cubic root of 145559 is about 52.6033037774.

Subtracting from 145559 its sum of digits (29), we obtain a triangular number (145530 = T₅₃₉).

The spelling of 145559 in words is "one hundred forty-five thousand, five hundred fifty-nine".