245329769 has 2 divisors, whose sum is σ = 245329770. Its totient is φ = 245329768.

The previous prime is 245329757. The next prime is 245329793. The reversal of 245329769 is 967923542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227647744 + 17682025 = 15088^2 + 4205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245329769 is a prime.

It is a super-2 number, since 2×245329769² = 120373391115186722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245329709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122664884 + 122664885.

It is an arithmetic number, because the mean of its divisors is an integer number (122664885).

Almost surely, 2^245329769 is an apocalyptic number.

It is an amenable number.

245329769 is a deficient number, since it is larger than the sum of its proper divisors (1).

245329769 is an equidigital number, since it uses as much as digits as its factorization.

245329769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 47.

The square root of 245329769 is about 15663.0063844717. The cubic root of 245329769 is about 626.0130931537.

The spelling of 245329769 in words is "two hundred forty-five million, three hundred twenty-nine thousand, seven hundred sixty-nine".