109978975 has 12 divisors (see below), whose sum is σ = 138948696. Its totient is φ = 86322080.

The previous prime is 109978963. The next prime is 109978997. The reversal of 109978975 is 579879901.

It is a de Polignac number, because none of the positive numbers 2^k-109978975 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40177 + ... + 42826.

It is an arithmetic number, because the mean of its divisors is an integer number (11579058).

Almost surely, 2^109978975 is an apocalyptic number.

109978975 is a deficient number, since it is larger than the sum of its proper divisors (28969721).

109978975 is an equidigital number, since it uses as much as digits as its factorization.

109978975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83066 (or 83061 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 55.

The square root of 109978975 is about 10487.0861062547. The cubic root of 109978975 is about 479.1114566089. Note that the first 3 decimals are identical.

The spelling of 109978975 in words is "one hundred nine million, nine hundred seventy-eight thousand, nine hundred seventy-five".