109545225 has 12 divisors (see below), whose sum is σ = 181114896. Its totient is φ = 58424080.

The previous prime is 109545221. The next prime is 109545239. The reversal of 109545225 is 522545901.

It is not a de Polignac number, because 109545225 - 2² = 109545221 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (109545221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 730227 + ... + 730376.

It is an arithmetic number, because the mean of its divisors is an integer number (15092908).

Almost surely, 2^109545225 is an apocalyptic number.

109545225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109545225 is a deficient number, since it is larger than the sum of its proper divisors (71569671).

109545225 is a wasteful number, since it uses less digits than its factorization.

109545225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460616 (or 1460611 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 109545225 is about 10466.3854792378. The cubic root of 109545225 is about 478.4807651609.

The spelling of 109545225 in words is "one hundred nine million, five hundred forty-five thousand, two hundred twenty-five".