142633 has 4 divisors (see below), whose sum is σ = 150160. Its totient is φ = 135108.

The previous prime is 142619. The next prime is 142657. The reversal of 142633 is 336241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142633 - 2⁵ = 142601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 7507 = 142633 / (1 + 4 + 2 + 6 + 3 + 3).

It is a Duffinian number.

142633 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 142633.

It is not an unprimeable number, because it can be changed into a prime (142673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3735 + ... + 3772.

It is an arithmetic number, because the mean of its divisors is an integer number (37540).

2¹⁴²⁶³³ is an apocalyptic number.

It is an amenable number.

142633 is a deficient number, since it is larger than the sum of its proper divisors (7527).

142633 is an equidigital number, since it uses as much as digits as its factorization.

142633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7526.

The product of its digits is 432, while the sum is 19.

The square root of 142633 is about 377.6678434815. The cubic root of 142633 is about 52.2484413048.

Adding to 142633 its reverse (336241), we get a palindrome (478874).

The spelling of 142633 in words is "one hundred forty-two thousand, six hundred thirty-three".