108599381 has 16 divisors (see below), whose sum is σ = 121735680. Its totient is φ = 96027120.

The previous prime is 108599371. The next prime is 108599401. The reversal of 108599381 is 183995801.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 108599381 - 2⁶ = 108599317 is a prime.

It is a super-2 number, since 2×108599381² = 23587651107166322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108599371) by changing a digit.

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, 207386 + ... + 207908.

It is an arithmetic number, because the mean of its divisors is an integer number (7608480).

Almost surely, 2^108599381 is an apocalyptic number.

108599381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

108599381 is a deficient number, since it is larger than the sum of its proper divisors (13136299).

108599381 is a wasteful number, since it uses less digits than its factorization.

108599381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016.

The product of its (nonzero) digits is 77760, while the sum is 44.

The square root of 108599381 is about 10421.1026767804. The cubic root of 108599381 is about 477.0996704935.

The spelling of 108599381 in words is "one hundred eight million, five hundred ninety-nine thousand, three hundred eighty-one".