109445105 has 48 divisors (see below), whose sum is σ = 169099392. Its totient is φ = 66528000.

The previous prime is 109445081. The next prime is 109445107. The reversal of 109445105 is 501544901.

109445105 = 358² + 359² + ... + 720².

It is not a de Polignac number, because 109445105 - 2¹² = 109441009 is a prime.

It is a super-2 number, since 2×109445105² = 23956462016922050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (109445107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181805 + ... + 182405.

It is an arithmetic number, because the mean of its divisors is an integer number (3522904).

Almost surely, 2^109445105 is an apocalyptic number.

It is an amenable number.

109445105 is a deficient number, since it is larger than the sum of its proper divisors (59654287).

109445105 is a wasteful number, since it uses less digits than its factorization.

109445105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 109445105 is about 10461.6014548443. The cubic root of 109445105 is about 478.3349499015.

The spelling of 109445105 in words is "one hundred nine million, four hundred forty-five thousand, one hundred five".