1391089114 has 8 divisors (see below), whose sum is σ = 2095292628. Its totient is φ = 692658240.

The previous prime is 1391089109. The next prime is 1391089159. The reversal of 1391089114 is 4119801931.

It can be written as a sum of positive squares in 2 ways, for example, as 1381385889 + 9703225 = 37167^2 + 3115^2 .

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

It is an unprimeable number.

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, 1442557 + ... + 1443520.

Almost surely, 2^1391089114 is an apocalyptic number.

1391089114 is a deficient number, since it is larger than the sum of its proper divisors (704203514).

1391089114 is a wasteful number, since it uses less digits than its factorization.

1391089114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886320.

The product of its (nonzero) digits is 7776, while the sum is 37.

The square root of 1391089114 is about 37297.3070609662. The cubic root of 1391089114 is about 1116.3104339096.

The spelling of 1391089114 in words is "one billion, three hundred ninety-one million, eighty-nine thousand, one hundred fourteen".