153820 has 12 divisors (see below), whose sum is σ = 323064. Its totient is φ = 61520.

The previous prime is 153817. The next prime is 153841. The reversal of 153820 is 28351.

It is a happy number.

153820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 3826 + ... + 3865.

It is an arithmetic number, because the mean of its divisors is an integer number (26922).

2¹⁵³⁸²⁰ is an apocalyptic number.

153820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153820 is an abundant number, since it is smaller than the sum of its proper divisors (169244).

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

153820 is a wasteful number, since it uses less digits than its factorization.

153820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7700 (or 7698 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 153820 is about 392.1989291163. The cubic root of 153820 is about 53.5801924287.

The spelling of 153820 in words is "one hundred fifty-three thousand, eight hundred twenty".