142106623 has 2 divisors, whose sum is σ = 142106624. Its totient is φ = 142106622.

The previous prime is 142106609. The next prime is 142106639. The reversal of 142106623 is 326601241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142106623 - 2¹³ = 142098431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142106663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71053311 + 71053312.

It is an arithmetic number, because the mean of its divisors is an integer number (71053312).

Almost surely, 2^142106623 is an apocalyptic number.

142106623 is a deficient number, since it is larger than the sum of its proper divisors (1).

142106623 is an equidigital number, since it uses as much as digits as its factorization.

142106623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 142106623 is about 11920.8482500198. The cubic root of 142106623 is about 521.8408901798.

Adding to 142106623 its reverse (326601241), we get a palindrome (468707864).

The spelling of 142106623 in words is "one hundred forty-two million, one hundred six thousand, six hundred twenty-three".