300146221 has 4 divisors (see below), whose sum is σ = 300444700. Its totient is φ = 299847744.

The previous prime is 300146191. The next prime is 300146243. The reversal of 300146221 is 122641003.

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

It can be written as a sum of positive squares in 2 ways, for example, as 54597321 + 245548900 = 7389^2 + 15670^2 .

It is a cyclic number.

It is not a de Polignac number, because 300146221 - 2²¹ = 298049069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300146521) 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 3 ways as a sum of consecutive naturals, for example, 147726 + ... + 149743.

It is an arithmetic number, because the mean of its divisors is an integer number (75111175).

Almost surely, 2^300146221 is an apocalyptic number.

It is an amenable number.

300146221 is a deficient number, since it is larger than the sum of its proper divisors (298479).

300146221 is a wasteful number, since it uses less digits than its factorization.

300146221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298478.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 300146221 is about 17324.7285981628. The cubic root of 300146221 is about 669.5416937005.

Adding to 300146221 its reverse (122641003), we get a palindrome (422787224).

The spelling of 300146221 in words is "three hundred million, one hundred forty-six thousand, two hundred twenty-one".