109198942 has 12 divisors (see below), whose sum is σ = 164718216. Its totient is φ = 54294020.

The previous prime is 109198937. The next prime is 109198993. The reversal of 109198942 is 249891901.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 260409 + ... + 260827.

It is an arithmetic number, because the mean of its divisors is an integer number (13726518).

Almost surely, 2^109198942 is an apocalyptic number.

109198942 is a deficient number, since it is larger than the sum of its proper divisors (55519274).

109198942 is an frugal number, since it uses more digits than its factorization.

109198942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151 (or 732 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 109198942 is about 10449.8297593789. The cubic root of 109198942 is about 477.9760583937.

The spelling of 109198942 in words is "one hundred nine million, one hundred ninety-eight thousand, nine hundred forty-two".