142442023 has 2 divisors, whose sum is σ = 142442024. Its totient is φ = 142442022.

The previous prime is 142441973. The next prime is 142442029. The reversal of 142442023 is 320244241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142442023 - 2²¹ = 140344871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142441985 and 142442003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142442029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71221011 + 71221012.

It is an arithmetic number, because the mean of its divisors is an integer number (71221012).

Almost surely, 2^142442023 is an apocalyptic number.

142442023 is a deficient number, since it is larger than the sum of its proper divisors (1).

142442023 is an equidigital number, since it uses as much as digits as its factorization.

142442023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 142442023 is about 11934.9077499577. The cubic root of 142442023 is about 522.2511171695.

Adding to 142442023 its reverse (320244241), we get a palindrome (462686264).

The spelling of 142442023 in words is "one hundred forty-two million, four hundred forty-two thousand, twenty-three".