245968669 has 2 divisors, whose sum is σ = 245968670. Its totient is φ = 245968668.

The previous prime is 245968621. The next prime is 245968703. The reversal of 245968669 is 966869542.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164788569 + 81180100 = 12837^2 + 9010^2 .

It is a cyclic number.

It is not a de Polignac number, because 245968669 - 2¹¹ = 245966621 is a prime.

It is a super-2 number, since 2×245968669² = 121001172259263122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245968369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122984334 + 122984335.

It is an arithmetic number, because the mean of its divisors is an integer number (122984335).

Almost surely, 2^245968669 is an apocalyptic number.

It is an amenable number.

245968669 is a deficient number, since it is larger than the sum of its proper divisors (1).

245968669 is an equidigital number, since it uses as much as digits as its factorization.

245968669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5598720, while the sum is 55.

The square root of 245968669 is about 15683.3883137541. The cubic root of 245968669 is about 626.5560535805.

The spelling of 245968669 in words is "two hundred forty-five million, nine hundred sixty-eight thousand, six hundred sixty-nine".