142764847 has 2 divisors, whose sum is σ = 142764848. Its totient is φ = 142764846.

The previous prime is 142764799. The next prime is 142764877. The reversal of 142764847 is 748467241.

It is a strong prime.

It is an emirp because it is prime and its reverse (748467241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142764847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142764877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71382423 + 71382424.

It is an arithmetic number, because the mean of its divisors is an integer number (71382424).

Almost surely, 2^142764847 is an apocalyptic number.

142764847 is a deficient number, since it is larger than the sum of its proper divisors (1).

142764847 is an equidigital number, since it uses as much as digits as its factorization.

142764847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 301056, while the sum is 43.

The square root of 142764847 is about 11948.4244568060. The cubic root of 142764847 is about 522.6453547355.

The spelling of 142764847 in words is "one hundred forty-two million, seven hundred sixty-four thousand, eight hundred forty-seven".