153385 has 4 divisors (see below), whose sum is σ = 184068. Its totient is φ = 122704.

The previous prime is 153379. The next prime is 153407. The reversal of 153385 is 583351.

It is a happy number.

153385 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 85264 + 68121 = 292^2 + 261^2 .

It is a cyclic number.

It is not a de Polignac number, because 153385 - 2⁵ = 153353 is a prime.

It is a d-powerful number, because it can be written as 1 + 5⁵ + 3⁹ + 3⁹ + 8⁵ + 5⁷ .

It is a Duffinian 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, 15334 + ... + 15343.

It is an arithmetic number, because the mean of its divisors is an integer number (46017).

2¹⁵³³⁸⁵ is an apocalyptic number.

It is an amenable number.

153385 is a deficient number, since it is larger than the sum of its proper divisors (30683).

153385 is an equidigital number, since it uses as much as digits as its factorization.

153385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30682.

The product of its digits is 1800, while the sum is 25.

The square root of 153385 is about 391.6439709736. The cubic root of 153385 is about 53.5296368242.

It can be divided in two parts, 1533 and 85, that multiplied together give a triangular number (130305 = T₅₁₀).

The spelling of 153385 in words is "one hundred fifty-three thousand, three hundred eighty-five".