142646 has 16 divisors (see below), whose sum is σ = 255744. Its totient is φ = 58344.

The previous prime is 142619. The next prime is 142657. The reversal of 142646 is 646241.

It is a happy number.

142646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

142646 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101 + ... + 543.

It is an arithmetic number, because the mean of its divisors is an integer number (15984).

2¹⁴²⁶⁴⁶ is an apocalyptic number.

142646 is a deficient number, since it is larger than the sum of its proper divisors (113098).

142646 is a wasteful number, since it uses less digits than its factorization.

142646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475.

The product of its digits is 1152, while the sum is 23.

The square root of 142646 is about 377.6850539802. The cubic root of 142646 is about 52.2500286165.

Adding to 142646 its reverse (646241), we get a palindrome (788887).

The spelling of 142646 in words is "one hundred forty-two thousand, six hundred forty-six".