245269789 has 2 divisors, whose sum is σ = 245269790. Its totient is φ = 245269788.

The previous prime is 245269771. The next prime is 245269811. The reversal of 245269789 is 987962542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222516889 + 22752900 = 14917^2 + 4770^2 .

It is a cyclic number.

It is not a de Polignac number, because 245269789 - 2¹⁷ = 245138717 is a prime.

It is a super-2 number, since 2×245269789² = 120314538792209042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245269589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122634894 + 122634895.

It is an arithmetic number, because the mean of its divisors is an integer number (122634895).

Almost surely, 2^245269789 is an apocalyptic number.

It is an amenable number.

245269789 is a deficient number, since it is larger than the sum of its proper divisors (1).

245269789 is an equidigital number, since it uses as much as digits as its factorization.

245269789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 52.

The square root of 245269789 is about 15661.0915647665. The cubic root of 245269789 is about 625.9620715893.

The spelling of 245269789 in words is "two hundred forty-five million, two hundred sixty-nine thousand, seven hundred eighty-nine".