3109142 has 8 divisors (see below), whose sum is σ = 4671432. Its totient is φ = 1552000.

The previous prime is 3109121. The next prime is 3109157. The reversal of 3109142 is 2419013.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142 + ... + 2742.

It is an arithmetic number, because the mean of its divisors is an integer number (583929).

Almost surely, 2^3109142 is an apocalyptic number.

3109142 is a deficient number, since it is larger than the sum of its proper divisors (1562290).

3109142 is a wasteful number, since it uses less digits than its factorization.

3109142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 3109142 is about 1763.2759284922. The cubic root of 3109142 is about 145.9531656873.

The spelling of 3109142 in words is "three million, one hundred nine thousand, one hundred forty-two".