245366749 has 2 divisors, whose sum is σ = 245366750. Its totient is φ = 245366748.

The previous prime is 245366713. The next prime is 245366761. The reversal of 245366749 is 947663542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234641124 + 10725625 = 15318^2 + 3275^2 .

It is a cyclic number.

It is not a de Polignac number, because 245366749 - 2⁷ = 245366621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245366699 and 245366708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245366449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122683374 + 122683375.

It is an arithmetic number, because the mean of its divisors is an integer number (122683375).

Almost surely, 2^245366749 is an apocalyptic number.

It is an amenable number.

245366749 is a deficient number, since it is larger than the sum of its proper divisors (1).

245366749 is an equidigital number, since it uses as much as digits as its factorization.

245366749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 46.

The square root of 245366749 is about 15664.1868285590. The cubic root of 245366749 is about 626.0445457860.

The spelling of 245366749 in words is "two hundred forty-five million, three hundred sixty-six thousand, seven hundred forty-nine".