142664983 has 2 divisors, whose sum is σ = 142664984. Its totient is φ = 142664982.

The previous prime is 142664947. The next prime is 142664987. The reversal of 142664983 is 389466241.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (389466241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142664983 - 2²¹ = 140567831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142664987) 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, 71332491 + 71332492.

It is an arithmetic number, because the mean of its divisors is an integer number (71332492).

Almost surely, 2^142664983 is an apocalyptic number.

142664983 is a deficient number, since it is larger than the sum of its proper divisors (1).

142664983 is an equidigital number, since it uses as much as digits as its factorization.

142664983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 43.

The square root of 142664983 is about 11944.2447647392. The cubic root of 142664983 is about 522.5234628475.

The spelling of 142664983 in words is "one hundred forty-two million, six hundred sixty-four thousand, nine hundred eighty-three".