300115421 has 2 divisors, whose sum is σ = 300115422. Its totient is φ = 300115420.

The previous prime is 300115411. The next prime is 300115423. The reversal of 300115421 is 124511003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268632100 + 31483321 = 16390^2 + 5611^2 .

It is a cyclic number.

It is not a de Polignac number, because 300115421 - 2⁶ = 300115357 is a prime.

Together with 300115423, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 300115421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (300115423) 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 as a sum of consecutive naturals, namely, 150057710 + 150057711.

It is an arithmetic number, because the mean of its divisors is an integer number (150057711).

Almost surely, 2^300115421 is an apocalyptic number.

It is an amenable number.

300115421 is a deficient number, since it is larger than the sum of its proper divisors (1).

300115421 is an equidigital number, since it uses as much as digits as its factorization.

300115421 is an odious number, because the sum of its binary digits is odd.

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

The square root of 300115421 is about 17323.8396725437. The cubic root of 300115421 is about 669.5187908750.

Adding to 300115421 its reverse (124511003), we get a palindrome (424626424).

The spelling of 300115421 in words is "three hundred million, one hundred fifteen thousand, four hundred twenty-one".