1246752769 has 2 divisors, whose sum is σ = 1246752770. Its totient is φ = 1246752768.

The previous prime is 1246752751. The next prime is 1246752779. The reversal of 1246752769 is 9672576421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1212084225 + 34668544 = 34815^2 + 5888^2 .

It is an emirp because it is prime and its reverse (9672576421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1246752769 is a prime.

It is a super-2 number, since 2×1246752769² = 3108784934018334722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1246752779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623376384 + 623376385.

It is an arithmetic number, because the mean of its divisors is an integer number (623376385).

Almost surely, 2^1246752769 is an apocalyptic number.

It is an amenable number.

1246752769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1246752769 is an equidigital number, since it uses as much as digits as its factorization.

1246752769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The square root of 1246752769 is about 35309.3864149464. The cubic root of 1246752769 is about 1076.2837431680.

The spelling of 1246752769 in words is "one billion, two hundred forty-six million, seven hundred fifty-two thousand, seven hundred sixty-nine".