142564843 has 2 divisors, whose sum is σ = 142564844. Its totient is φ = 142564842.

The previous prime is 142564819. The next prime is 142564897. The reversal of 142564843 is 348465241.

It is a weak prime.

It is an emirp because it is prime and its reverse (348465241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142564843 - 2¹³ = 142556651 is a prime.

It is a super-2 number, since 2×142564843² = 40649468919229298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142564343) 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, 71282421 + 71282422.

It is an arithmetic number, because the mean of its divisors is an integer number (71282422).

Almost surely, 2^142564843 is an apocalyptic number.

142564843 is a deficient number, since it is larger than the sum of its proper divisors (1).

142564843 is an equidigital number, since it uses as much as digits as its factorization.

142564843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 37.

The square root of 142564843 is about 11940.0520518128. The cubic root of 142564843 is about 522.4011769484.

The spelling of 142564843 in words is "one hundred forty-two million, five hundred sixty-four thousand, eight hundred forty-three".