145534 has 4 divisors (see below), whose sum is σ = 218304. Its totient is φ = 72766.

The previous prime is 145531. The next prime is 145543. The reversal of 145534 is 435541.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 36382 + ... + 36385.

It is an arithmetic number, because the mean of its divisors is an integer number (54576).

2¹⁴⁵⁵³⁴ is an apocalyptic number.

145534 is a deficient number, since it is larger than the sum of its proper divisors (72770).

145534 is an equidigital number, since it uses as much as digits as its factorization.

145534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72769.

The product of its digits is 1200, while the sum is 22.

The square root of 145534 is about 381.4891872649. The cubic root of 145534 is about 52.6002920367.

The spelling of 145534 in words is "one hundred forty-five thousand, five hundred thirty-four".