302401081 has 2 divisors, whose sum is σ = 302401082. Its totient is φ = 302401080.

The previous prime is 302401039. The next prime is 302401087. The reversal of 302401081 is 180104203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272250000 + 30151081 = 16500^2 + 5491^2 .

It is a cyclic number.

It is not a de Polignac number, because 302401081 - 2⁹ = 302400569 is a prime.

It is a super-2 number, since 2×302401081² = 182892827579937122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (302401087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151200540 + 151200541.

It is an arithmetic number, because the mean of its divisors is an integer number (151200541).

Almost surely, 2^302401081 is an apocalyptic number.

It is an amenable number.

302401081 is a deficient number, since it is larger than the sum of its proper divisors (1).

302401081 is an equidigital number, since it uses as much as digits as its factorization.

302401081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 302401081 is about 17389.6831771025. The cubic root of 302401081 is about 671.2141650513.

Adding to 302401081 its reverse (180104203), we get a palindrome (482505284).

The spelling of 302401081 in words is "three hundred two million, four hundred one thousand, eighty-one".