109669855 has 4 divisors (see below), whose sum is σ = 131603832. Its totient is φ = 87735880.

The previous prime is 109669853. The next prime is 109669877. The reversal of 109669855 is 558966901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 558966901 = 1237 ⋅451873.

It is not a de Polignac number, because 109669855 - 2¹ = 109669853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109669799 and 109669808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109669853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10966981 + ... + 10966990.

It is an arithmetic number, because the mean of its divisors is an integer number (32900958).

Almost surely, 2^109669855 is an apocalyptic number.

109669855 is a deficient number, since it is larger than the sum of its proper divisors (21933977).

109669855 is an equidigital number, since it uses as much as digits as its factorization.

109669855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21933976.

The product of its (nonzero) digits is 583200, while the sum is 49.

The square root of 109669855 is about 10472.3376091492. The cubic root of 109669855 is about 478.6621528241.

The spelling of 109669855 in words is "one hundred nine million, six hundred sixty-nine thousand, eight hundred fifty-five".