109961775 has 108 divisors (see below), whose sum is σ = 247841776. Its totient is φ = 45619200.

The previous prime is 109961737. The next prime is 109961777. The reversal of 109961775 is 577169901.

It is not a de Polignac number, because 109961775 - 2⁷ = 109961647 is a prime.

It is a super-2 number, since 2×109961775² = 24183183922301250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 109961775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109961777) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 190287 + ... + 190863.

Almost surely, 2^109961775 is an apocalyptic number.

109961775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

109961775 is an abundant number, since it is smaller than the sum of its proper divisors (137880001).

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

109961775 is a wasteful number, since it uses less digits than its factorization.

109961775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 119070, while the sum is 45.

The square root of 109961775 is about 10486.2660179875. The cubic root of 109961775 is about 479.0864786629.

The spelling of 109961775 in words is "one hundred nine million, nine hundred sixty-one thousand, seven hundred seventy-five".