142019638199 has 4 divisors (see below), whose sum is σ = 142020909840. Its totient is φ = 142018366560.

The previous prime is 142019638183. The next prime is 142019638213. The reversal of 142019638199 is 991836910241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991836910241 = 2617 ⋅378997673.

It is a cyclic number.

It is not a de Polignac number, because 142019638199 - 2⁴ = 142019638183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142019638199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142019638139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450242 + ... + 697679.

It is an arithmetic number, because the mean of its divisors is an integer number (35505227460).

Almost surely, 2^142019638199 is an apocalyptic number.

142019638199 is a deficient number, since it is larger than the sum of its proper divisors (1271641).

142019638199 is a wasteful number, since it uses less digits than its factorization.

142019638199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271640.

The product of its (nonzero) digits is 839808, while the sum is 53.

The spelling of 142019638199 in words is "one hundred forty-two billion, nineteen million, six hundred thirty-eight thousand, one hundred ninety-nine".