109815223 has 32 divisors (see below), whose sum is σ = 139536000. Its totient is φ = 86026752.

The previous prime is 109815221. The next prime is 109815229. The reversal of 109815223 is 322518901.

It is not a de Polignac number, because 109815223 - 2¹ = 109815221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109815221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215493 + ... + 216001.

It is an arithmetic number, because the mean of its divisors is an integer number (4360500).

Almost surely, 2^109815223 is an apocalyptic number.

109815223 is a deficient number, since it is larger than the sum of its proper divisors (29720777).

109815223 is an equidigital number, since it uses as much as digits as its factorization.

109815223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 109815223 is about 10479.2758814720. The cubic root of 109815223 is about 478.8735492272.

The spelling of 109815223 in words is "one hundred nine million, eight hundred fifteen thousand, two hundred twenty-three".