1399316091 has 8 divisors (see below), whose sum is σ = 1930091280. Its totient is φ = 900709152.

The previous prime is 1399316069. The next prime is 1399316119. The reversal of 1399316091 is 1906139931.

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

It is not a de Polignac number, because 1399316091 - 2⁵ = 1399316059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1399315091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8041960 + ... + 8042133.

It is an arithmetic number, because the mean of its divisors is an integer number (241261410).

Almost surely, 2^1399316091 is an apocalyptic number.

1399316091 is a deficient number, since it is larger than the sum of its proper divisors (530775189).

1399316091 is a wasteful number, since it uses less digits than its factorization.

1399316091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16084125.

The product of its (nonzero) digits is 39366, while the sum is 42.

The square root of 1399316091 is about 37407.4336329024. The cubic root of 1399316091 is about 1118.5067501643.

The spelling of 1399316091 in words is "one billion, three hundred ninety-nine million, three hundred sixteen thousand, ninety-one".