609142 has 8 divisors (see below), whose sum is σ = 922896. Its totient is φ = 301512.

The previous prime is 609113. The next prime is 609143. The reversal of 609142 is 241906.

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

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609143) by changing a digit.

609142 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 1273 + ... + 1684.

It is an arithmetic number, because the mean of its divisors is an integer number (115362).

2⁶⁰⁹¹⁴² is an apocalyptic number.

609142 is a deficient number, since it is larger than the sum of its proper divisors (313754).

609142 is a wasteful number, since it uses less digits than its factorization.

609142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 609142 is about 780.4754960920. The cubic root of 609142 is about 84.7694791968.

Subtracting from 609142 its reverse (241906), we obtain a square (367236 = 606²).

The spelling of 609142 in words is "six hundred nine thousand, one hundred forty-two".