1245244069 has 2 divisors, whose sum is σ = 1245244070. Its totient is φ = 1245244068.

The previous prime is 1245244043. The next prime is 1245244073. The reversal of 1245244069 is 9604425421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 679279969 + 565964100 = 26063^2 + 23790^2 .

It is a cyclic number.

It is not a de Polignac number, because 1245244069 - 2¹⁵ = 1245211301 is a prime.

It is a super-2 number, since 2×1245244069² = 3101265582759353522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1245344069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622622034 + 622622035.

It is an arithmetic number, because the mean of its divisors is an integer number (622622035).

Almost surely, 2^1245244069 is an apocalyptic number.

It is an amenable number.

1245244069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245244069 is an equidigital number, since it uses as much as digits as its factorization.

1245244069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 1245244069 is about 35288.0159402594. The cubic root of 1245244069 is about 1075.8494296594.

The spelling of 1245244069 in words is "one billion, two hundred forty-five million, two hundred forty-four thousand, sixty-nine".