1302748849 has 2 divisors, whose sum is σ = 1302748850. Its totient is φ = 1302748848.

The previous prime is 1302748823. The next prime is 1302748859. The reversal of 1302748849 is 9488472031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 832726449 + 470022400 = 28857^2 + 21680^2 .

It is an emirp because it is prime and its reverse (9488472031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1302748849 - 2⁷ = 1302748721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1302748799 and 1302748808.

It is not a weakly prime, because it can be changed into another prime (1302748859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651374424 + 651374425.

It is an arithmetic number, because the mean of its divisors is an integer number (651374425).

Almost surely, 2^1302748849 is an apocalyptic number.

It is an amenable number.

1302748849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302748849 is an equidigital number, since it uses as much as digits as its factorization.

1302748849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 1302748849 is about 36093.6123019018. The cubic root of 1302748849 is about 1092.1615913083.

The spelling of 1302748849 in words is "one billion, three hundred two million, seven hundred forty-eight thousand, eight hundred forty-nine".