245703449 has 2 divisors, whose sum is σ = 245703450. Its totient is φ = 245703448.

The previous prime is 245703443. The next prime is 245703511. The reversal of 245703449 is 944307542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244703449 + 1000000 = 15643^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 245703449 - 2⁴ = 245703433 is a prime.

It is not a weakly prime, because it can be changed into another prime (245703443) 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, 122851724 + 122851725.

It is an arithmetic number, because the mean of its divisors is an integer number (122851725).

Almost surely, 2^245703449 is an apocalyptic number.

It is an amenable number.

245703449 is a deficient number, since it is larger than the sum of its proper divisors (1).

245703449 is an equidigital number, since it uses as much as digits as its factorization.

245703449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 245703449 is about 15674.9305899580. The cubic root of 245703449 is about 626.3307742660.

The spelling of 245703449 in words is "two hundred forty-five million, seven hundred three thousand, four hundred forty-nine".