1093989105 has 64 divisors (see below), whose sum is σ = 2131603200. Its totient is φ = 527938560.

The previous prime is 1093988969. The next prime is 1093989107. The reversal of 1093989105 is 5019893901.

It is not a de Polignac number, because 1093989105 - 2⁸ = 1093988849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1093989107) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 338457 + ... + 341673.

It is an arithmetic number, because the mean of its divisors is an integer number (33306300).

Almost surely, 2^1093989105 is an apocalyptic number.

1093989105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1093989105 is a deficient number, since it is larger than the sum of its proper divisors (1037614095).

1093989105 is a wasteful number, since it uses less digits than its factorization.

1093989105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3471 (or 3465 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 1093989105 is about 33075.5061185766. The cubic root of 1093989105 is about 1030.3963990948.

The spelling of 1093989105 in words is "one billion, ninety-three million, nine hundred eighty-nine thousand, one hundred five".