245269 has 2 divisors, whose sum is σ = 245270. Its totient is φ = 245268.

The previous prime is 245261. The next prime is 245279. The reversal of 245269 is 962542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237169 + 8100 = 487^2 + 90^2 .

It is a cyclic number.

It is not a de Polignac number, because 245269 - 2³ = 245261 is a prime.

It is a super-2 number, since 2×245269² = 120313764722, which contains 22 as substring.

It is an Ulam number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122634 + 122635.

It is an arithmetic number, because the mean of its divisors is an integer number (122635).

2²⁴⁵²⁶⁹ is an apocalyptic number.

It is an amenable number.

245269 is a deficient number, since it is larger than the sum of its proper divisors (1).

245269 is an equidigital number, since it uses as much as digits as its factorization.

245269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 245269 is about 495.2464033186. The cubic root of 245269 is about 62.5961400377.

The spelling of 245269 in words is "two hundred forty-five thousand, two hundred sixty-nine".