142046 has 4 divisors (see below), whose sum is σ = 213072. Its totient is φ = 71022.

The previous prime is 142039. The next prime is 142049. The reversal of 142046 is 640241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 640241 = 7 ⋅91463.

It is a super-2 number, since 2×142046² = 40354132232, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35510 + ... + 35513.

It is an arithmetic number, because the mean of its divisors is an integer number (53268).

2¹⁴²⁰⁴⁶ is an apocalyptic number.

142046 is a deficient number, since it is larger than the sum of its proper divisors (71026).

142046 is an equidigital number, since it uses as much as digits as its factorization.

142046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71025.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 142046 is about 376.8899043487. The cubic root of 142046 is about 52.1766673465.

Adding to 142046 its reverse (640241), we get a palindrome (782287).

The spelling of 142046 in words is "one hundred forty-two thousand, forty-six".