142345 has 16 divisors (see below), whose sum is σ = 201600. Its totient is φ = 96432.

The previous prime is 142327. The next prime is 142357. The reversal of 142345 is 543241.

It is not a de Polignac number, because 142345 - 2⁷ = 142217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1674 + ... + 1756.

It is an arithmetic number, because the mean of its divisors is an integer number (12600).

2¹⁴²³⁴⁵ is an apocalyptic number.

It is an amenable number.

142345 is a deficient number, since it is larger than the sum of its proper divisors (59255).

142345 is an frugal number, since it uses more digits than its factorization.

142345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 95 counting only the distinct ones).

The product of its digits is 480, while the sum is 19.

The square root of 142345 is about 377.2863633899. The cubic root of 142345 is about 52.2132514812.

Adding to 142345 its reverse (543241), we get a palindrome (685586).

The spelling of 142345 in words is "one hundred forty-two thousand, three hundred forty-five".