245252069 has 2 divisors, whose sum is σ = 245252070. Its totient is φ = 245252068.

The previous prime is 245252039. The next prime is 245252123. The reversal of 245252069 is 960252542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223861444 + 21390625 = 14962^2 + 4625^2 .

It is a cyclic number.

It is not a de Polignac number, because 245252069 - 2⁸ = 245251813 is a prime.

It is a super-2 number, since 2×245252069² = 120297154697561522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245252009) 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, 122626034 + 122626035.

It is an arithmetic number, because the mean of its divisors is an integer number (122626035).

Almost surely, 2^245252069 is an apocalyptic number.

It is an amenable number.

245252069 is a deficient number, since it is larger than the sum of its proper divisors (1).

245252069 is an equidigital number, since it uses as much as digits as its factorization.

245252069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 245252069 is about 15660.5258213126. The cubic root of 245252069 is about 625.9469966045.

The spelling of 245252069 in words is "two hundred forty-five million, two hundred fifty-two thousand, sixty-nine".