1299161108 has 18 divisors (see below), whose sum is σ = 2644721226. Its totient is φ = 556783248.

The previous prime is 1299161099. The next prime is 1299161117. The reversal of 1299161108 is 8011619921.

It is an interprime number because it is at equal distance from previous prime (1299161099) and next prime (1299161117).

It can be written as a sum of positive squares in only one way, i.e., 1127079184 + 172081924 = 33572^2 + 13118^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3313991 + ... + 3314382.

It is an arithmetic number, because the mean of its divisors is an integer number (146928957).

Almost surely, 2^1299161108 is an apocalyptic number.

It is an amenable number.

1299161108 is an abundant number, since it is smaller than the sum of its proper divisors (1345560118).

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

1299161108 is a wasteful number, since it uses less digits than its factorization.

1299161108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6628391 (or 6628382 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 38.

The square root of 1299161108 is about 36043.8775383559. The cubic root of 1299161108 is about 1091.1580733773.

The spelling of 1299161108 in words is "one billion, two hundred ninety-nine million, one hundred sixty-one thousand, one hundred eight".