300020091 has 24 divisors (see below), whose sum is σ = 466036560. Its totient is φ = 171182592.

The previous prime is 300020081. The next prime is 300020107. The reversal of 300020091 is 190020003.

It is not a de Polignac number, because 300020091 - 2⁹ = 300019579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 300020091.

It is not an unprimeable number, because it can be changed into a prime (300020041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142575 + ... + 144663.

It is an arithmetic number, because the mean of its divisors is an integer number (19418190).

Almost surely, 2^300020091 is an apocalyptic number.

300020091 is a deficient number, since it is larger than the sum of its proper divisors (166016469).

300020091 is a wasteful number, since it uses less digits than its factorization.

300020091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083 (or 3076 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 300020091 is about 17321.0880431917. The cubic root of 300020091 is about 669.4478937235.

Adding to 300020091 its reverse (190020003), we get a palindrome (490040094).

The spelling of 300020091 in words is "three hundred million, twenty thousand, ninety-one".