245303749 has 2 divisors, whose sum is σ = 245303750. Its totient is φ = 245303748.

The previous prime is 245303633. The next prime is 245303767. The reversal of 245303749 is 947303542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202492900 + 42810849 = 14230^2 + 6543^2 .

It is a cyclic number.

It is not a de Polignac number, because 245303749 - 2⁷ = 245303621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245304749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122651874 + 122651875.

It is an arithmetic number, because the mean of its divisors is an integer number (122651875).

Almost surely, 2^245303749 is an apocalyptic number.

It is an amenable number.

245303749 is a deficient number, since it is larger than the sum of its proper divisors (1).

245303749 is an equidigital number, since it uses as much as digits as its factorization.

245303749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 245303749 is about 15662.1757428526. The cubic root of 245303749 is about 625.9909604454.

The spelling of 245303749 in words is "two hundred forty-five million, three hundred three thousand, seven hundred forty-nine".