109646142 has 8 divisors (see below), whose sum is σ = 219292296. Its totient is φ = 36548712.

The previous prime is 109646123. The next prime is 109646149. The reversal of 109646142 is 241646901.

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

109646142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109646149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9137173 + ... + 9137184.

It is an arithmetic number, because the mean of its divisors is an integer number (27411537).

Almost surely, 2^109646142 is an apocalyptic number.

109646142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109646142 is a wasteful number, since it uses less digits than its factorization.

109646142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18274362.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 109646142 is about 10471.2053747408. The cubic root of 109646142 is about 478.6276512928.

The spelling of 109646142 in words is "one hundred nine million, six hundred forty-six thousand, one hundred forty-two".