142345243 has 2 divisors, whose sum is σ = 142345244. Its totient is φ = 142345242.

The previous prime is 142345241. The next prime is 142345261. The reversal of 142345243 is 342543241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142345243 - 2¹ = 142345241 is a prime.

Together with 142345241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (142345241) 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, 71172621 + 71172622.

It is an arithmetic number, because the mean of its divisors is an integer number (71172622).

Almost surely, 2^142345243 is an apocalyptic number.

142345243 is a deficient number, since it is larger than the sum of its proper divisors (1).

142345243 is an equidigital number, since it uses as much as digits as its factorization.

142345243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 28.

The square root of 142345243 is about 11930.8525680271. The cubic root of 142345243 is about 522.1328119265.

Adding to 142345243 its reverse (342543241), we get a palindrome (484888484).

The spelling of 142345243 in words is "one hundred forty-two million, three hundred forty-five thousand, two hundred forty-three".