183990203137 has 4 divisors (see below), whose sum is σ = 198143295700. Its totient is φ = 169837110576.

The previous prime is 183990203129. The next prime is 183990203143. The reversal of 183990203137 is 731302099381.

183990203137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14786316801 + 169203886336 = 121599^2 + 411344^2 .

It is a cyclic number.

It is not a de Polignac number, because 183990203137 - 2³ = 183990203129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (183990203107) 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 in 3 ways as a sum of consecutive naturals, for example, 7076546262 + ... + 7076546287.

It is an arithmetic number, because the mean of its divisors is an integer number (49535823925).

Almost surely, 2^183990203137 is an apocalyptic number.

It is an amenable number.

183990203137 is a deficient number, since it is larger than the sum of its proper divisors (14153092563).

183990203137 is a wasteful number, since it uses less digits than its factorization.

183990203137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14153092562.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 183990203137 in words is "one hundred eighty-three billion, nine hundred ninety million, two hundred three thousand, one hundred thirty-seven".