1298832613 has 4 divisors (see below), whose sum is σ = 1398742828. Its totient is φ = 1198922400.

The previous prime is 1298832581. The next prime is 1298832617. The reversal of 1298832613 is 3162388921.

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 137522529 + 1161310084 = 11727^2 + 34078^2 .

It is not a de Polignac number, because 1298832613 - 2⁵ = 1298832581 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1298832613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298832617) 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 3 ways as a sum of consecutive naturals, for example, 49955088 + ... + 49955113.

It is an arithmetic number, because the mean of its divisors is an integer number (349685707).

Almost surely, 2^1298832613 is an apocalyptic number.

1298832613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1298832613 is a deficient number, since it is larger than the sum of its proper divisors (99910215).

1298832613 is an equidigital number, since it uses as much as digits as its factorization.

1298832613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99910214.

The product of its digits is 124416, while the sum is 43.

The square root of 1298832613 is about 36039.3203737251. The cubic root of 1298832613 is about 1091.0660985935.

It can be divided in two parts, 129883 and 2613, that added together give a square (132496 = 364²).

The spelling of 1298832613 in words is "one billion, two hundred ninety-eight million, eight hundred thirty-two thousand, six hundred thirteen".