199284125039 has 4 divisors (see below), whose sum is σ = 199287332160. Its totient is φ = 199280917920.

The previous prime is 199284125017. The next prime is 199284125057. The reversal of 199284125039 is 930521482991.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 199284125039 - 2⁸ = 199284124783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199284125639) 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, 1508474 + ... + 1635255.

It is an arithmetic number, because the mean of its divisors is an integer number (49821833040).

Almost surely, 2^199284125039 is an apocalyptic number.

199284125039 is a deficient number, since it is larger than the sum of its proper divisors (3207121).

199284125039 is an equidigital number, since it uses as much as digits as its factorization.

199284125039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207120.

The product of its (nonzero) digits is 1399680, while the sum is 53.

The spelling of 199284125039 in words is "one hundred ninety-nine billion, two hundred eighty-four million, one hundred twenty-five thousand, thirty-nine".