383155 has 4 divisors (see below), whose sum is σ = 459792. Its totient is φ = 306520.

The previous prime is 383153. The next prime is 383171. The reversal of 383155 is 551383.

It is a happy number.

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

It is not a de Polignac number, because 383155 - 2¹ = 383153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383153) 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 in 3 ways as a sum of consecutive naturals, for example, 38311 + ... + 38320.

It is an arithmetic number, because the mean of its divisors is an integer number (114948).

2³⁸³¹⁵⁵ is an apocalyptic number.

383155 is a deficient number, since it is larger than the sum of its proper divisors (76637).

383155 is an equidigital number, since it uses as much as digits as its factorization.

383155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76636.

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

The square root of 383155 is about 618.9951534544. The cubic root of 383155 is about 72.6314697357.

The spelling of 383155 in words is "three hundred eighty-three thousand, one hundred fifty-five".