305801 has 4 divisors (see below), whose sum is σ = 307092. Its totient is φ = 304512.

The previous prime is 305783. The next prime is 305803. The reversal of 305801 is 108503.

305801 is nontrivially palindromic in base 8.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 126025 + 179776 = 355^2 + 424^2 .

It is a cyclic number.

It is not a de Polignac number, because 305801 - 2¹⁴ = 289417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 305801.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 305801.

It is not an unprimeable number, because it can be changed into a prime (305803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176 + ... + 801.

It is an arithmetic number, because the mean of its divisors is an integer number (76773).

2³⁰⁵⁸⁰¹ is an apocalyptic number.

It is an amenable number.

305801 is a deficient number, since it is larger than the sum of its proper divisors (1291).

305801 is an equidigital number, since it uses as much as digits as its factorization.

305801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 305801 is about 552.9927666796. The cubic root of 305801 is about 67.3720300608.

The spelling of 305801 in words is "three hundred five thousand, eight hundred one".