109905075 has 72 divisors (see below), whose sum is σ = 232334336. Its totient is φ = 48600000.

The previous prime is 109905071. The next prime is 109905091. The reversal of 109905075 is 570509901.

It is a happy number.

It is not a de Polignac number, because 109905075 - 2² = 109905071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109905071) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 47700 + ... + 49950.

Almost surely, 2^109905075 is an apocalyptic number.

109905075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

109905075 is an abundant number, since it is smaller than the sum of its proper divisors (122429261).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109905075 is a wasteful number, since it uses less digits than its factorization.

109905075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2305 (or 2297 counting only the distinct ones).

The product of its (nonzero) digits is 14175, while the sum is 36.

The square root of 109905075 is about 10483.5621331683. The cubic root of 109905075 is about 479.0041201233.

The spelling of 109905075 in words is "one hundred nine million, nine hundred five thousand, seventy-five".