306540401 has 2 divisors, whose sum is σ = 306540402. Its totient is φ = 306540400.

The previous prime is 306540391. The next prime is 306540427. The reversal of 306540401 is 104045603.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264030001 + 42510400 = 16249^2 + 6520^2 .

It is a cyclic number.

It is not a de Polignac number, because 306540401 - 2²⁶ = 239431537 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (306540491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153270200 + 153270201.

It is an arithmetic number, because the mean of its divisors is an integer number (153270201).

Almost surely, 2^306540401 is an apocalyptic number.

It is an amenable number.

306540401 is a deficient number, since it is larger than the sum of its proper divisors (1).

306540401 is an equidigital number, since it uses as much as digits as its factorization.

306540401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 306540401 is about 17508.2952054162. The cubic root of 306540401 is about 674.2628631549.

The spelling of 306540401 in words is "three hundred six million, five hundred forty thousand, four hundred one".