303749 has 2 divisors, whose sum is σ = 303750. Its totient is φ = 303748.

The previous prime is 303731. The next prime is 303767. The reversal of 303749 is 947303.

It is a balanced prime because it is at equal distance from previous prime (303731) and next prime (303767).

It can be written as a sum of positive squares in only one way, i.e., 297025 + 6724 = 545^2 + 82^2 .

It is a cyclic number.

It is not a de Polignac number, because 303749 - 2⁸ = 303493 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (303049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151874 + 151875.

It is an arithmetic number, because the mean of its divisors is an integer number (151875).

2³⁰³⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

303749 is a deficient number, since it is larger than the sum of its proper divisors (1).

303749 is an equidigital number, since it uses as much as digits as its factorization.

303749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 303749 is about 551.1342849070. The cubic root of 303749 is about 67.2209974303.

The spelling of 303749 in words is "three hundred three thousand, seven hundred forty-nine".