199142838553 has 2 divisors, whose sum is σ = 199142838554. Its totient is φ = 199142838552.

The previous prime is 199142838467. The next prime is 199142838577. The reversal of 199142838553 is 355838241991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198668992729 + 473845824 = 445723^2 + 21768^2 .

It is an emirp because it is prime and its reverse (355838241991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199142838553 - 2¹⁷ = 199142707481 is a prime.

It is not a weakly prime, because it can be changed into another prime (199142838593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99571419276 + 99571419277.

It is an arithmetic number, because the mean of its divisors is an integer number (99571419277).

Almost surely, 2^199142838553 is an apocalyptic number.

It is an amenable number.

199142838553 is a deficient number, since it is larger than the sum of its proper divisors (1).

199142838553 is an equidigital number, since it uses as much as digits as its factorization.

199142838553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9331200, while the sum is 58.

The spelling of 199142838553 in words is "one hundred ninety-nine billion, one hundred forty-two million, eight hundred thirty-eight thousand, five hundred fifty-three".