1108913 has 8 divisors (see below), whose sum is σ = 1203048. Its totient is φ = 1016064.

The previous prime is 1108909. The next prime is 1108957. The reversal of 1108913 is 3198011.

It can be written as a sum of positive squares in 4 ways, for example, as 94864 + 1014049 = 308^2 + 1007^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1108913 - 2² = 1108909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1108903) 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, 2345 + ... + 2777.

It is an arithmetic number, because the mean of its divisors is an integer number (150381).

2^1108913 is an apocalyptic number.

1108913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1108913 is a deficient number, since it is larger than the sum of its proper divisors (94135).

1108913 is a wasteful number, since it uses less digits than its factorization.

1108913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1108913 is about 1053.0493815581. The cubic root of 1108913 is about 103.5060713530.

The spelling of 1108913 in words is "one million, one hundred eight thousand, nine hundred thirteen".