142434433 has 2 divisors, whose sum is σ = 142434434. Its totient is φ = 142434432.

The previous prime is 142434421. The next prime is 142434463. The reversal of 142434433 is 334434241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100340289 + 42094144 = 10017^2 + 6488^2 .

It is an emirp because it is prime and its reverse (334434241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142434433 is a prime.

It is not a weakly prime, because it can be changed into another prime (142434403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71217216 + 71217217.

It is an arithmetic number, because the mean of its divisors is an integer number (71217217).

Almost surely, 2^142434433 is an apocalyptic number.

It is an amenable number.

142434433 is a deficient number, since it is larger than the sum of its proper divisors (1).

142434433 is an equidigital number, since it uses as much as digits as its factorization.

142434433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 28.

The square root of 142434433 is about 11934.5897709138. The cubic root of 142434433 is about 522.2418409829.

Adding to 142434433 its reverse (334434241), we get a palindrome (476868674).

The spelling of 142434433 in words is "one hundred forty-two million, four hundred thirty-four thousand, four hundred thirty-three".