245222669 has 2 divisors, whose sum is σ = 245222670. Its totient is φ = 245222668.

The previous prime is 245222651. The next prime is 245222713. The reversal of 245222669 is 966222542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168870025 + 76352644 = 12995^2 + 8738^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245222669 is a prime.

It is a super-2 number, since 2×245222669² = 120268314782967122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245222609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122611334 + 122611335.

It is an arithmetic number, because the mean of its divisors is an integer number (122611335).

Almost surely, 2^245222669 is an apocalyptic number.

It is an amenable number.

245222669 is a deficient number, since it is larger than the sum of its proper divisors (1).

245222669 is an equidigital number, since it uses as much as digits as its factorization.

245222669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 38.

The square root of 245222669 is about 15659.5871273798. The cubic root of 245222669 is about 625.9219834589.

The spelling of 245222669 in words is "two hundred forty-five million, two hundred twenty-two thousand, six hundred sixty-nine".