999142184057 has 2 divisors, whose sum is σ = 999142184058. Its totient is φ = 999142184056.

The previous prime is 999142183997. The next prime is 999142184077. The reversal of 999142184057 is 750481241999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 999142184041 + 16 = 999571^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 999142184057 - 2¹⁰ = 999142183033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 999142183987 and 999142184005.

It is not a weakly prime, because it can be changed into another prime (999142184077) 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, 499571092028 + 499571092029.

It is an arithmetic number, because the mean of its divisors is an integer number (499571092029).

Almost surely, 2^999142184057 is an apocalyptic number.

It is an amenable number.

999142184057 is a deficient number, since it is larger than the sum of its proper divisors (1).

999142184057 is an equidigital number, since it uses as much as digits as its factorization.

999142184057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 59.

The spelling of 999142184057 in words is "nine hundred ninety-nine billion, one hundred forty-two million, one hundred eighty-four thousand, fifty-seven".