303434149 has 2 divisors, whose sum is σ = 303434150. Its totient is φ = 303434148.

The previous prime is 303434143. The next prime is 303434171. The reversal of 303434149 is 941434303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222308100 + 81126049 = 14910^2 + 9007^2 .

It is a cyclic number.

It is not a de Polignac number, because 303434149 - 2¹³ = 303425957 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 303434149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (303434143) 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, 151717074 + 151717075.

It is an arithmetic number, because the mean of its divisors is an integer number (151717075).

Almost surely, 2^303434149 is an apocalyptic number.

It is an amenable number.

303434149 is a deficient number, since it is larger than the sum of its proper divisors (1).

303434149 is an equidigital number, since it uses as much as digits as its factorization.

303434149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 303434149 is about 17419.3613258351. The cubic root of 303434149 is about 671.9776342766.

The spelling of 303434149 in words is "three hundred three million, four hundred thirty-four thousand, one hundred forty-nine".