142003434 has 16 divisors (see below), whose sum is σ = 284644800. Its totient is φ = 47228160.

The previous prime is 142003429. The next prime is 142003451. The reversal of 142003434 is 434300241.

It is a self number, because there is not a number n which added to its sum of digits gives 142003434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23662 + ... + 29049.

It is an arithmetic number, because the mean of its divisors is an integer number (17790300).

Almost surely, 2^142003434 is an apocalyptic number.

142003434 is an abundant number, since it is smaller than the sum of its proper divisors (142641366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142003434 is a wasteful number, since it uses less digits than its factorization.

142003434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53165.

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

The square root of 142003434 is about 11916.5193743811. The cubic root of 142003434 is about 521.7145501179.

Adding to 142003434 its reverse (434300241), we get a palindrome (576303675).

The spelling of 142003434 in words is "one hundred forty-two million, three thousand, four hundred thirty-four".