142242623 has 2 divisors, whose sum is σ = 142242624. Its totient is φ = 142242622.

The previous prime is 142242599. The next prime is 142242631. The reversal of 142242623 is 326242241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142242623 - 2⁸ = 142242367 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142242592 and 142242601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142242673) 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, 71121311 + 71121312.

It is an arithmetic number, because the mean of its divisors is an integer number (71121312).

Almost surely, 2^142242623 is an apocalyptic number.

142242623 is a deficient number, since it is larger than the sum of its proper divisors (1).

142242623 is an equidigital number, since it uses as much as digits as its factorization.

142242623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 26.

The square root of 142242623 is about 11926.5511779391. The cubic root of 142242623 is about 522.0073091953.

Adding to 142242623 its reverse (326242241), we get a palindrome (468484864).

The spelling of 142242623 in words is "one hundred forty-two million, two hundred forty-two thousand, six hundred twenty-three".