145533 has 8 divisors (see below), whose sum is σ = 196000. Its totient is φ = 96048.

The previous prime is 145531. The next prime is 145543. The reversal of 145533 is 335541.

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

It is not a de Polignac number, because 145533 - 2¹ = 145531 is a prime.

It is an Ulam number.

It is a Duffinian number.

145533 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145531) 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, 243 + ... + 591.

It is an arithmetic number, because the mean of its divisors is an integer number (24500).

2¹⁴⁵⁵³³ is an apocalyptic number.

It is an amenable number.

145533 is a deficient number, since it is larger than the sum of its proper divisors (50467).

145533 is a wasteful number, since it uses less digits than its factorization.

145533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491.

The product of its digits is 900, while the sum is 21.

The square root of 145533 is about 381.4878766095. The cubic root of 145533 is about 52.6001715599.

The spelling of 145533 in words is "one hundred forty-five thousand, five hundred thirty-three".