145724 has 12 divisors (see below), whose sum is σ = 270144. Its totient is φ = 68544.

The previous prime is 145723. The next prime is 145753. The reversal of 145724 is 427541.

145724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 145724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145721) 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, 1004 + ... + 1139.

It is an arithmetic number, because the mean of its divisors is an integer number (22512).

2¹⁴⁵⁷²⁴ is an apocalyptic number.

It is an amenable number.

145724 is a deficient number, since it is larger than the sum of its proper divisors (124420).

145724 is a wasteful number, since it uses less digits than its factorization.

145724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164 (or 2162 counting only the distinct ones).

The product of its digits is 1120, while the sum is 23.

The square root of 145724 is about 381.7381301364. The cubic root of 145724 is about 52.6231726223.

The spelling of 145724 in words is "one hundred forty-five thousand, seven hundred twenty-four".