155384 has 8 divisors (see below), whose sum is σ = 291360. Its totient is φ = 77688.

The previous prime is 155383. The next prime is 155387. The reversal of 155384 is 483551.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9704 + ... + 9719.

It is an arithmetic number, because the mean of its divisors is an integer number (36420).

2¹⁵⁵³⁸⁴ is an apocalyptic number.

It is an amenable number.

155384 is a deficient number, since it is larger than the sum of its proper divisors (135976).

155384 is a wasteful number, since it uses less digits than its factorization.

155384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19429 (or 19425 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 155384 is about 394.1877725146. The cubic root of 155384 is about 53.7611766915.

The spelling of 155384 in words is "one hundred fifty-five thousand, three hundred eighty-four".