1286116369 has 8 divisors (see below), whose sum is σ = 1373245632. Its totient is φ = 1201588080.

The previous prime is 1286116361. The next prime is 1286116373. The reversal of 1286116369 is 9636116821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1286116369 - 2³ = 1286116361 is a prime.

It is a super-2 number, since 2×1286116369² = 3308190629219488322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1286116361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649222 + ... + 651199.

It is an arithmetic number, because the mean of its divisors is an integer number (171655704).

Almost surely, 2^1286116369 is an apocalyptic number.

It is an amenable number.

1286116369 is a deficient number, since it is larger than the sum of its proper divisors (87129263).

1286116369 is a wasteful number, since it uses less digits than its factorization.

1286116369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300487.

The product of its digits is 93312, while the sum is 43.

The square root of 1286116369 is about 35862.4646252875. The cubic root of 1286116369 is about 1087.4937138669.

The spelling of 1286116369 in words is "one billion, two hundred eighty-six million, one hundred sixteen thousand, three hundred sixty-nine".