300540421 has 2 divisors, whose sum is σ = 300540422. Its totient is φ = 300540420.

The previous prime is 300540403. The next prime is 300540479. The reversal of 300540421 is 124045003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 284428225 + 16112196 = 16865^2 + 4014^2 .

It is a cyclic number.

It is not a de Polignac number, because 300540421 - 2¹⁷ = 300409349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (300540481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150270210 + 150270211.

It is an arithmetic number, because the mean of its divisors is an integer number (150270211).

Almost surely, 2^300540421 is an apocalyptic number.

It is an amenable number.

300540421 is a deficient number, since it is larger than the sum of its proper divisors (1).

300540421 is an equidigital number, since it uses as much as digits as its factorization.

300540421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 300540421 is about 17336.1016667531. The cubic root of 300540421 is about 669.8346818676.

Adding to 300540421 its reverse (124045003), we get a palindrome (424585424).

The spelling of 300540421 in words is "three hundred million, five hundred forty thousand, four hundred twenty-one".