145526 has 4 divisors (see below), whose sum is σ = 218292. Its totient is φ = 72762.

The previous prime is 145517. The next prime is 145531. The reversal of 145526 is 625541.

145526 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 an emirpimes, since its reverse is a distinct semiprime: 625541 = 7 ⋅89363.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36380 + ... + 36383.

It is an arithmetic number, because the mean of its divisors is an integer number (54573).

2¹⁴⁵⁵²⁶ is an apocalyptic number.

145526 is a deficient number, since it is larger than the sum of its proper divisors (72766).

145526 is an equidigital number, since it uses as much as digits as its factorization.

145526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72765.

The product of its digits is 1200, while the sum is 23.

The square root of 145526 is about 381.4787018957. The cubic root of 145526 is about 52.5993282069.

The spelling of 145526 in words is "one hundred forty-five thousand, five hundred twenty-six".