142242433 has 2 divisors, whose sum is σ = 142242434. Its totient is φ = 142242432.

The previous prime is 142242377. The next prime is 142242461. The reversal of 142242433 is 334242241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131951169 + 10291264 = 11487^2 + 3208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142242433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142242398 and 142242407.

It is not a weakly prime, because it can be changed into another prime (142242533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71121216 + 71121217.

It is an arithmetic number, because the mean of its divisors is an integer number (71121217).

Almost surely, 2^142242433 is an apocalyptic number.

It is an amenable number.

142242433 is a deficient number, since it is larger than the sum of its proper divisors (1).

142242433 is an equidigital number, since it uses as much as digits as its factorization.

142242433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 25.

The square root of 142242433 is about 11926.5432125155. The cubic root of 142242433 is about 522.0070767722.

Adding to 142242433 its reverse (334242241), we get a palindrome (476484674).

The spelling of 142242433 in words is "one hundred forty-two million, two hundred forty-two thousand, four hundred thirty-three".