1299230847 has 24 divisors (see below), whose sum is σ = 1950084864. Its totient is φ = 864413208.

The previous prime is 1299230833. The next prime is 1299230857. The reversal of 1299230847 is 7480329921.

It is not a de Polignac number, because 1299230847 - 2¹⁸ = 1298968703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299230857) 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 in 23 ways as a sum of consecutive naturals, for example, 121978 + ... + 132200.

It is an arithmetic number, because the mean of its divisors is an integer number (81253536).

Almost surely, 2^1299230847 is an apocalyptic number.

1299230847 is a deficient number, since it is larger than the sum of its proper divisors (650854017).

1299230847 is an equidigital number, since it uses as much as digits as its factorization.

1299230847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10761 (or 10749 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1299230847 is about 36044.8449434867. The cubic root of 1299230847 is about 1091.1775974920.

The spelling of 1299230847 in words is "one billion, two hundred ninety-nine million, two hundred thirty thousand, eight hundred forty-seven".