1298099516 has 24 divisors (see below), whose sum is σ = 2596972896. Its totient is φ = 556162560.

The previous prime is 1298099503. The next prime is 1298099521. The reversal of 1298099516 is 6159908921.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 156596 + ... + 164676.

It is an arithmetic number, because the mean of its divisors is an integer number (108207204).

Almost surely, 2^1298099516 is an apocalyptic number.

It is an amenable number.

1298099516 is an abundant number, since it is smaller than the sum of its proper divisors (1298873380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1298099516 is a wasteful number, since it uses less digits than its factorization.

1298099516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13829 (or 13827 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 50.

The square root of 1298099516 is about 36029.1481442457. The cubic root of 1298099516 is about 1090.8607840133.

The spelling of 1298099516 in words is "one billion, two hundred ninety-eight million, ninety-nine thousand, five hundred sixteen".