142665059 has 2 divisors, whose sum is σ = 142665060. Its totient is φ = 142665058.

The previous prime is 142665041. The next prime is 142665079. The reversal of 142665059 is 950566241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142665059 - 2⁸ = 142664803 is a prime.

It is not a weakly prime, because it can be changed into another prime (142665079) 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, 71332529 + 71332530.

It is an arithmetic number, because the mean of its divisors is an integer number (71332530).

Almost surely, 2^142665059 is an apocalyptic number.

142665059 is a deficient number, since it is larger than the sum of its proper divisors (1).

142665059 is an equidigital number, since it uses as much as digits as its factorization.

142665059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 142665059 is about 11944.2479461873. The cubic root of 142665059 is about 522.5235556332.

The spelling of 142665059 in words is "one hundred forty-two million, six hundred sixty-five thousand, fifty-nine".