1606142 has 8 divisors (see below), whose sum is σ = 2417376. Its totient is φ = 800352.

The previous prime is 1606139. The next prime is 1606151. The reversal of 1606142 is 2416061.

It is a happy number.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518 + ... + 1865.

It is an arithmetic number, because the mean of its divisors is an integer number (302172).

2^1606142 is an apocalyptic number.

1606142 is a deficient number, since it is larger than the sum of its proper divisors (811234).

1606142 is a wasteful number, since it uses less digits than its factorization.

1606142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1606142 is about 1267.3365772359. The cubic root of 1606142 is about 117.1101794068.

The spelling of 1606142 in words is "one million, six hundred six thousand, one hundred forty-two".