308055 has 16 divisors (see below), whose sum is σ = 537984. Its totient is φ = 149280.

The previous prime is 308051. The next prime is 308081. The reversal of 308055 is 550803.

It is not a de Polignac number, because 308055 - 2² = 308051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308051) 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 15 ways as a sum of consecutive naturals, for example, 769 + ... + 1098.

It is an arithmetic number, because the mean of its divisors is an integer number (33624).

2³⁰⁸⁰⁵⁵ is an apocalyptic number.

308055 is a deficient number, since it is larger than the sum of its proper divisors (229929).

308055 is a wasteful number, since it uses less digits than its factorization.

308055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 308055 is about 555.0270263690. The cubic root of 308055 is about 67.5371537571.

Adding to 308055 its reverse (550803), we get a palindrome (858858).

The spelling of 308055 in words is "three hundred eight thousand, fifty-five".