145244 has 12 divisors (see below), whose sum is σ = 277368. Its totient is φ = 66000.

The previous prime is 145219. The next prime is 145253. The reversal of 145244 is 442541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1607 + ... + 1694.

It is an arithmetic number, because the mean of its divisors is an integer number (23114).

2¹⁴⁵²⁴⁴ is an apocalyptic number.

It is an amenable number.

145244 is a deficient number, since it is larger than the sum of its proper divisors (132124).

145244 is a wasteful number, since it uses less digits than its factorization.

145244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316 (or 3314 counting only the distinct ones).

The product of its digits is 640, while the sum is 20.

The square root of 145244 is about 381.1089083189. The cubic root of 145244 is about 52.5653306119.

Adding to 145244 its reverse (442541), we get a palindrome (587785).

The spelling of 145244 in words is "one hundred forty-five thousand, two hundred forty-four".