109942605 has 24 divisors (see below), whose sum is σ = 191486880. Its totient is φ = 58353120.

The previous prime is 109942603. The next prime is 109942627. The reversal of 109942605 is 506249901.

109942605 is a `hidden beast` number, since 1 + 0 + 9 + 9 + 42 + 605 = 666.

It is not a de Polignac number, because 109942605 - 2¹ = 109942603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109942605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109942601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3706 + ... + 15284.

It is an arithmetic number, because the mean of its divisors is an integer number (7978620).

Almost surely, 2^109942605 is an apocalyptic number.

109942605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109942605 is a deficient number, since it is larger than the sum of its proper divisors (81544275).

109942605 is a wasteful number, since it uses less digits than its factorization.

109942605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11801 (or 11798 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 109942605 is about 10485.3519254243. The cubic root of 109942605 is about 479.0586368013.

The spelling of 109942605 in words is "one hundred nine million, nine hundred forty-two thousand, six hundred five".