6909142 has 8 divisors (see below), whose sum is σ = 10393056. Its totient is φ = 3444792.

The previous prime is 6909127. The next prime is 6909151. The reversal of 6909142 is 2419096.

It is a happy number.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3973 + ... + 5440.

It is an arithmetic number, because the mean of its divisors is an integer number (1299132).

Almost surely, 2^6909142 is an apocalyptic number.

6909142 is a deficient number, since it is larger than the sum of its proper divisors (3483914).

6909142 is a wasteful number, since it uses less digits than its factorization.

6909142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9782.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 6909142 is about 2628.5246812613. The cubic root of 6909142 is about 190.4618680322.

The spelling of 6909142 in words is "six million, nine hundred nine thousand, one hundred forty-two".