142003443 has 4 divisors (see below), whose sum is σ = 189337928. Its totient is φ = 94668960.

The previous prime is 142003429. The next prime is 142003451. The reversal of 142003443 is 344300241.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 142003443 - 2⁴ = 142003427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142003423) 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, 23667238 + ... + 23667243.

It is an arithmetic number, because the mean of its divisors is an integer number (47334482).

Almost surely, 2^142003443 is an apocalyptic number.

142003443 is a deficient number, since it is larger than the sum of its proper divisors (47334485).

142003443 is an equidigital number, since it uses as much as digits as its factorization.

142003443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47334484.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 142003443 is about 11916.5197520081. The cubic root of 142003443 is about 521.7145611398.

Adding to 142003443 its reverse (344300241), we get a palindrome (486303684).

The spelling of 142003443 in words is "one hundred forty-two million, three thousand, four hundred forty-three".