1246104049 has 2 divisors, whose sum is σ = 1246104050. Its totient is φ = 1246104048.

The previous prime is 1246104047. The next prime is 1246104053. The reversal of 1246104049 is 9404016421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1236225600 + 9878449 = 35160^2 + 3143^2 .

It is an emirp because it is prime and its reverse (9404016421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1246104049 - 2¹ = 1246104047 is a prime.

It is a super-4 number, since 4×1246104049⁴ (a number of 37 digits) contains 4444 as substring.

Together with 1246104047, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1246104049.

It is not a weakly prime, because it can be changed into another prime (1246104047) 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, 623052024 + 623052025.

It is an arithmetic number, because the mean of its divisors is an integer number (623052025).

Almost surely, 2^1246104049 is an apocalyptic number.

It is an amenable number.

1246104049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1246104049 is an equidigital number, since it uses as much as digits as its factorization.

1246104049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1246104049 is about 35300.1989937734. The cubic root of 1246104049 is about 1076.0970373669.

The spelling of 1246104049 in words is "one billion, two hundred forty-six million, one hundred four thousand, forty-nine".