1298909983 has 6 divisors (see below), whose sum is σ = 1510976976. Its totient is φ = 1113351372.

The previous prime is 1298909959. The next prime is 1298910017. The reversal of 1298909983 is 3899098921.

It is a de Polignac number, because none of the positive numbers 2^k-1298909983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298909903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13254135 + ... + 13254232.

It is an arithmetic number, because the mean of its divisors is an integer number (251829496).

Almost surely, 2^1298909983 is an apocalyptic number.

1298909983 is a deficient number, since it is larger than the sum of its proper divisors (212066993).

1298909983 is an equidigital number, since it uses as much as digits as its factorization.

1298909983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26508381 (or 26508374 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 58.

The square root of 1298909983 is about 36040.3937686591. The cubic root of 1298909983 is about 1091.0877626907.

The spelling of 1298909983 in words is "one billion, two hundred ninety-eight million, nine hundred nine thousand, nine hundred eighty-three".