245185469 has 2 divisors, whose sum is σ = 245185470. Its totient is φ = 245185468.

The previous prime is 245185433. The next prime is 245185529. The reversal of 245185469 is 964581542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164814244 + 80371225 = 12838^2 + 8965^2 .

It is a cyclic number.

It is not a de Polignac number, because 245185469 - 2¹² = 245181373 is a prime.

It is a super-2 number, since 2×245185469² = 120231828417499922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245188469) 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, 122592734 + 122592735.

It is an arithmetic number, because the mean of its divisors is an integer number (122592735).

Almost surely, 2^245185469 is an apocalyptic number.

It is an amenable number.

245185469 is a deficient number, since it is larger than the sum of its proper divisors (1).

245185469 is an equidigital number, since it uses as much as digits as its factorization.

245185469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 44.

The square root of 245185469 is about 15658.3993115516. The cubic root of 245185469 is about 625.8903313073.

The spelling of 245185469 in words is "two hundred forty-five million, one hundred eighty-five thousand, four hundred sixty-nine".