155244 has 24 divisors (see below), whose sum is σ = 384048. Its totient is φ = 48640.

The previous prime is 155231. The next prime is 155251. The reversal of 155244 is 442551.

It is a self number, because there is not a number n which added to its sum of digits gives 155244.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177 + ... + 584.

It is an arithmetic number, because the mean of its divisors is an integer number (16002).

2¹⁵⁵²⁴⁴ is an apocalyptic number.

It is an amenable number.

155244 is an abundant number, since it is smaller than the sum of its proper divisors (228804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155244 is a wasteful number, since it uses less digits than its factorization.

155244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 783 counting only the distinct ones).

The product of its digits is 800, while the sum is 21.

The square root of 155244 is about 394.0101521535. The cubic root of 155244 is about 53.7450256799.

Adding to 155244 its reverse (442551), we get a palindrome (597795).

It can be divided in two parts, 1552 and 44, that added together give a triangular number (1596 = T₅₆).

The spelling of 155244 in words is "one hundred fifty-five thousand, two hundred forty-four".