1303198849 has 4 divisors (see below), whose sum is σ = 1311945300. Its totient is φ = 1294452400.

The previous prime is 1303198789. The next prime is 1303198861. The reversal of 1303198849 is 9488913031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9488913031 = 13 ⋅729916387.

It can be written as a sum of positive squares in 2 ways, for example, as 59367025 + 1243831824 = 7705^2 + 35268^2 .

It is not a de Polignac number, because 1303198849 - 2¹¹ = 1303196801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1303198799 and 1303198808.

It is not an unprimeable number, because it can be changed into a prime (1303198889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4373002 + ... + 4373299.

It is an arithmetic number, because the mean of its divisors is an integer number (327986325).

Almost surely, 2^1303198849 is an apocalyptic number.

It is an amenable number.

1303198849 is a deficient number, since it is larger than the sum of its proper divisors (8746451).

1303198849 is an equidigital number, since it uses as much as digits as its factorization.

1303198849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8746450.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 1303198849 is about 36099.8455536862. The cubic root of 1303198849 is about 1092.2873295729.

The spelling of 1303198849 in words is "one billion, three hundred three million, one hundred ninety-eight thousand, eight hundred forty-nine".