142102443 has 16 divisors (see below), whose sum is σ = 216815616. Its totient is φ = 81096960.

The previous prime is 142102421. The next prime is 142102447. The reversal of 142102443 is 344201241.

It is not a de Polignac number, because 142102443 - 2⁶ = 142102379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (142102447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14203 + ... + 22043.

It is an arithmetic number, because the mean of its divisors is an integer number (13550976).

Almost surely, 2^142102443 is an apocalyptic number.

142102443 is a deficient number, since it is larger than the sum of its proper divisors (74713173).

142102443 is an equidigital number, since it uses as much as digits as its factorization.

142102443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8714.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 142102443 is about 11920.6729256364. The cubic root of 142102443 is about 521.8357735609.

Adding to 142102443 its reverse (344201241), we get a palindrome (486303684).

It can be divided in two parts, 14210 and 2443, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 142102443 in words is "one hundred forty-two million, one hundred two thousand, four hundred forty-three".