138455870403 has 8 divisors (see below), whose sum is σ = 184625891008. Its totient is φ = 92294881704.

The previous prime is 138455870381. The next prime is 138455870453. The reversal of 138455870403 is 304078554831.

138455870403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138455870403 - 2⁶ = 138455870339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138455870453) 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, 2222125 + ... + 2283582.

It is an arithmetic number, because the mean of its divisors is an integer number (23078236376).

Almost surely, 2^138455870403 is an apocalyptic number.

138455870403 is a deficient number, since it is larger than the sum of its proper divisors (46170020605).

138455870403 is a wasteful number, since it uses less digits than its factorization.

138455870403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515953.

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 138455870403 in words is "one hundred thirty-eight billion, four hundred fifty-five million, eight hundred seventy thousand, four hundred three".