109641975 has 24 divisors (see below), whose sum is σ = 182309760. Its totient is φ = 58141920.

The previous prime is 109641971. The next prime is 109641977. The reversal of 109641975 is 579146901.

It is not a de Polignac number, because 109641975 - 2² = 109641971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109641971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9342 + ... + 17508.

It is an arithmetic number, because the mean of its divisors is an integer number (7596240).

Almost surely, 2^109641975 is an apocalyptic number.

109641975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

109641975 is a deficient number, since it is larger than the sum of its proper divisors (72667785).

109641975 is a wasteful number, since it uses less digits than its factorization.

109641975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8359 (or 8354 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 109641975 is about 10471.0063986228. The cubic root of 109641975 is about 478.6215879493.

It can be divided in two parts, 1096 and 41975, that added together give a triangular number (43071 = T₂₉₃).

The spelling of 109641975 in words is "one hundred nine million, six hundred forty-one thousand, nine hundred seventy-five".