109142799 has 8 divisors (see below), whose sum is σ = 147696000. Its totient is φ = 71675736.

The previous prime is 109142791. The next prime is 109142801. The reversal of 109142799 is 997241901.

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

It is not a de Polignac number, because 109142799 - 2³ = 109142791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109142799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109142791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271299 + ... + 271700.

It is an arithmetic number, because the mean of its divisors is an integer number (18462000).

Almost surely, 2^109142799 is an apocalyptic number.

109142799 is a deficient number, since it is larger than the sum of its proper divisors (38553201).

109142799 is an equidigital number, since it uses as much as digits as its factorization.

109142799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543069.

The product of its (nonzero) digits is 40824, while the sum is 42.

The square root of 109142799 is about 10447.1431023031. The cubic root of 109142799 is about 477.8941296081.

The spelling of 109142799 in words is "one hundred nine million, one hundred forty-two thousand, seven hundred ninety-nine".