709142 has 16 divisors (see below), whose sum is σ = 1249440. Its totient is φ = 295704.

The previous prime is 709141. The next prime is 709151. The reversal of 709142 is 241907.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 709142.

It is not an unprimeable number, because it can be changed into a prime (709141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19148 + ... + 19184.

It is an arithmetic number, because the mean of its divisors is an integer number (78090).

2⁷⁰⁹¹⁴² is an apocalyptic number.

709142 is a deficient number, since it is larger than the sum of its proper divisors (540298).

709142 is an frugal number, since it uses more digits than its factorization.

709142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 709142 is about 842.1056940788. The cubic root of 709142 is about 89.1752637745.

The spelling of 709142 in words is "seven hundred nine thousand, one hundred forty-two".