305920001 has 2 divisors, whose sum is σ = 305920002. Its totient is φ = 305920000.

The previous prime is 305919979. The next prime is 305920019. The reversal of 305920001 is 100029503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193877776 + 112042225 = 13924^2 + 10585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-305920001 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (305920031) 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, 152960000 + 152960001.

It is an arithmetic number, because the mean of its divisors is an integer number (152960001).

Almost surely, 2^305920001 is an apocalyptic number.

It is an amenable number.

305920001 is a deficient number, since it is larger than the sum of its proper divisors (1).

305920001 is an equidigital number, since it uses as much as digits as its factorization.

305920001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 305920001 is about 17490.5689158472. The cubic root of 305920001 is about 673.8076809547.

Adding to 305920001 its reverse (100029503), we get a palindrome (405949504).

The spelling of 305920001 in words is "three hundred five million, nine hundred twenty thousand, one".