109640835 has 24 divisors (see below), whose sum is σ = 193634064. Its totient is φ = 57370560.

The previous prime is 109640833. The next prime is 109640857. The reversal of 109640835 is 538046901.

109640835 is a `hidden beast` number, since 1 + 0 + 9 + 640 + 8 + 3 + 5 = 666.

It is not a de Polignac number, because 109640835 - 2¹ = 109640833 is a prime.

It is a super-2 number, since 2×109640835² = 24042225398994450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 109640835.

It is not an unprimeable number, because it can be changed into a prime (109640833) 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 23 ways as a sum of consecutive naturals, for example, 20601 + ... + 25370.

It is an arithmetic number, because the mean of its divisors is an integer number (8068086).

Almost surely, 2^109640835 is an apocalyptic number.

109640835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

109640835 is a deficient number, since it is larger than the sum of its proper divisors (83993229).

109640835 is a wasteful number, since it uses less digits than its factorization.

109640835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46035 (or 46032 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 109640835 is about 10470.9519624531. The cubic root of 109640835 is about 478.6199291244.

The spelling of 109640835 in words is "one hundred nine million, six hundred forty thousand, eight hundred thirty-five".