153805 has 8 divisors (see below), whose sum is σ = 194400. Its totient is φ = 116496.

The previous prime is 153763. The next prime is 153817. The reversal of 153805 is 508351.

153805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153805 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

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, 715 + ... + 904.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2¹⁵³⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

153805 is a deficient number, since it is larger than the sum of its proper divisors (40595).

153805 is a wasteful number, since it uses less digits than its factorization.

153805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 153805 is about 392.1798057014. The cubic root of 153805 is about 53.5784507197.

It can be divided in two parts, 15 and 3805, that multiplied together give a palindrome (57075).

The spelling of 153805 in words is "one hundred fifty-three thousand, eight hundred five".