1300120849 has 4 divisors (see below), whose sum is σ = 1376598564. Its totient is φ = 1223643136.

The previous prime is 1300120817. The next prime is 1300120853. The reversal of 1300120849 is 9480210031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 826275025 + 473845824 = 28745^2 + 21768^2 .

It is not a de Polignac number, because 1300120849 - 2⁵ = 1300120817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1300120859) 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, 38238832 + ... + 38238865.

It is an arithmetic number, because the mean of its divisors is an integer number (344149641).

Almost surely, 2^1300120849 is an apocalyptic number.

It is an amenable number.

1300120849 is a deficient number, since it is larger than the sum of its proper divisors (76477715).

1300120849 is an equidigital number, since it uses as much as digits as its factorization.

1300120849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76477714.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1300120849 is about 36057.1885897944. The cubic root of 1300120849 is about 1091.4267009205.

The spelling of 1300120849 in words is "one billion, three hundred million, one hundred twenty thousand, eight hundred forty-nine".