203744147138 has 16 divisors (see below), whose sum is σ = 356707079424. Its totient is φ = 85461070560.

The previous prime is 203744147137. The next prime is 203744147147. The reversal of 203744147138 is 831741447302.

203744147138 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (203744147137) 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 7 ways as a sum of consecutive naturals, for example, 154820123 + ... + 154821438.

It is an arithmetic number, because the mean of its divisors is an integer number (22294192464).

Almost surely, 2^203744147138 is an apocalyptic number.

203744147138 is a deficient number, since it is larger than the sum of its proper divisors (152962932286).

203744147138 is a wasteful number, since it uses less digits than its factorization.

203744147138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309641617.

The product of its (nonzero) digits is 451584, while the sum is 44.

The spelling of 203744147138 in words is "two hundred three billion, seven hundred forty-four million, one hundred forty-seven thousand, one hundred thirty-eight".