300020081 has 2 divisors, whose sum is σ = 300020082. Its totient is φ = 300020080.

The previous prime is 300020053. The next prime is 300020107. The reversal of 300020081 is 180020003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160402225 + 139617856 = 12665^2 + 11816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-300020081 is a prime.

It is a super-2 number, since 2×300020081² = 180024098006493122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (300020041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150010040 + 150010041.

It is an arithmetic number, because the mean of its divisors is an integer number (150010041).

Almost surely, 2^300020081 is an apocalyptic number.

It is an amenable number.

300020081 is a deficient number, since it is larger than the sum of its proper divisors (1).

300020081 is an equidigital number, since it uses as much as digits as its factorization.

300020081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 300020081 is about 17321.0877545263. The cubic root of 300020081 is about 669.4478862857.

Adding to 300020081 its reverse (180020003), we get a palindrome (480040084).

The spelling of 300020081 in words is "three hundred million, twenty thousand, eighty-one".