109855207 has 48 divisors (see below), whose sum is σ = 155623680. Its totient is φ = 76204800.

The previous prime is 109855201. The next prime is 109855217. The reversal of 109855207 is 702558901.

It is a de Polignac number, because none of the positive numbers 2^k-109855207 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109855201) 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 47 ways as a sum of consecutive naturals, for example, 173782 + ... + 174412.

It is an arithmetic number, because the mean of its divisors is an integer number (3242160).

Almost surely, 2^109855207 is an apocalyptic number.

109855207 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

109855207 is a deficient number, since it is larger than the sum of its proper divisors (45768473).

109855207 is a wasteful number, since it uses less digits than its factorization.

109855207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 109855207 is about 10481.1834732534. The cubic root of 109855207 is about 478.9316618642.

The spelling of 109855207 in words is "one hundred nine million, eight hundred fifty-five thousand, two hundred seven".