145529 has 4 divisors (see below), whose sum is σ = 146340. Its totient is φ = 144720.

The previous prime is 145517. The next prime is 145531. The reversal of 145529 is 925541.

145529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 925541 = 313 ⋅2957.

It can be written as a sum of positive squares in 2 ways, for example, as 29929 + 115600 = 173^2 + 340^2 .

It is a cyclic number.

It is not a de Polignac number, because 145529 - 2⁴ = 145513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145498 and 145507.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145529.

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 3 ways as a sum of consecutive naturals, for example, 2 + ... + 539.

It is an arithmetic number, because the mean of its divisors is an integer number (36585).

2¹⁴⁵⁵²⁹ is an apocalyptic number.

It is an amenable number.

145529 is a deficient number, since it is larger than the sum of its proper divisors (811).

145529 is an equidigital number, since it uses as much as digits as its factorization.

145529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810.

The product of its digits is 1800, while the sum is 26.

The square root of 145529 is about 381.4826339429. The cubic root of 145529 is about 52.5996896472.

It can be divided in two parts, 1455 and 29, that multiplied together give a triangular number (42195 = T₂₉₀).

The spelling of 145529 in words is "one hundred forty-five thousand, five hundred twenty-nine".