109242879 has 8 divisors (see below), whose sum is σ = 145915440. Its totient is φ = 72699456.

The previous prime is 109242877. The next prime is 109242923. The reversal of 109242879 is 978242901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 109242879 - 2¹ = 109242877 is a prime.

It is a super-2 number, since 2×109242879² = 23868013224417282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 109242879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109242871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30292 + ... + 33705.

It is an arithmetic number, because the mean of its divisors is an integer number (18239430).

Almost surely, 2^109242879 is an apocalyptic number.

109242879 is a deficient number, since it is larger than the sum of its proper divisors (36672561).

109242879 is an equidigital number, since it uses as much as digits as its factorization.

109242879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64569.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 109242879 is about 10451.9318310062. The cubic root of 109242879 is about 478.0401555290.

The spelling of 109242879 in words is "one hundred nine million, two hundred forty-two thousand, eight hundred seventy-nine".