308361401 has 2 divisors, whose sum is σ = 308361402. Its totient is φ = 308361400.

The previous prime is 308361397. The next prime is 308361421. The reversal of 308361401 is 104163803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219040000 + 89321401 = 14800^2 + 9451^2 .

It is a cyclic number.

It is not a de Polignac number, because 308361401 - 2² = 308361397 is a prime.

It is not a weakly prime, because it can be changed into another prime (308361421) 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, 154180700 + 154180701.

It is an arithmetic number, because the mean of its divisors is an integer number (154180701).

Almost surely, 2^308361401 is an apocalyptic number.

It is an amenable number.

308361401 is a deficient number, since it is larger than the sum of its proper divisors (1).

308361401 is an equidigital number, since it uses as much as digits as its factorization.

308361401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 308361401 is about 17560.2221227409. Note that the first 3 decimals coincide. The cubic root of 308361401 is about 675.5953784918.

The spelling of 308361401 in words is "three hundred eight million, three hundred sixty-one thousand, four hundred one".