1083391115 has 16 divisors (see below), whose sum is σ = 1384992000. Its totient is φ = 811197792.

The previous prime is 1083391097. The next prime is 1083391123. The reversal of 1083391115 is 5111933801.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1083391115 - 2¹⁸ = 1083128971 is a prime.

It is a super-3 number, since 3×1083391115³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60815 + ... + 76584.

It is an arithmetic number, because the mean of its divisors is an integer number (86562000).

Almost surely, 2^1083391115 is an apocalyptic number.

1083391115 is a deficient number, since it is larger than the sum of its proper divisors (301600885).

1083391115 is a wasteful number, since it uses less digits than its factorization.

1083391115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137506.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 1083391115 is about 32914.9071850431. The cubic root of 1083391115 is about 1027.0582840185.

The spelling of 1083391115 in words is "one billion, eighty-three million, three hundred ninety-one thousand, one hundred fifteen".