155329 has 4 divisors (see below), whose sum is σ = 164484. Its totient is φ = 146176.

The previous prime is 155327. The next prime is 155333. The reversal of 155329 is 923551.

155329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48400 + 106929 = 220^2 + 327^2 .

It is a cyclic number.

It is not a de Polignac number, because 155329 - 2¹ = 155327 is a prime.

It is a Duffinian number.

155329 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (155327) 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, 4552 + ... + 4585.

It is an arithmetic number, because the mean of its divisors is an integer number (41121).

2¹⁵⁵³²⁹ is an apocalyptic number.

It is an amenable number.

155329 is a deficient number, since it is larger than the sum of its proper divisors (9155).

155329 is an equidigital number, since it uses as much as digits as its factorization.

155329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9154.

The product of its digits is 1350, while the sum is 25.

The square root of 155329 is about 394.1180026337. The cubic root of 155329 is about 53.7548328087.

It can be divided in two parts, 155 and 329, that added together give a palindrome (484).

The spelling of 155329 in words is "one hundred fifty-five thousand, three hundred twenty-nine".