138191203395 has 24 divisors (see below), whose sum is σ = 273750194016. Its totient is φ = 63173121408.

The previous prime is 138191203363. The next prime is 138191203429. The reversal of 138191203395 is 593302191831.

138191203395 is a `hidden beast` number, since 138 + 1 + 9 + 120 + 3 + 395 = 666.

It is not a de Polignac number, because 138191203395 - 2⁵ = 138191203363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 138191203395.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219350802 + ... + 219351431.

It is an arithmetic number, because the mean of its divisors is an integer number (11406258084).

Almost surely, 2^138191203395 is an apocalyptic number.

138191203395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138191203395 is a deficient number, since it is larger than the sum of its proper divisors (135558990621).

138191203395 is a wasteful number, since it uses less digits than its factorization.

138191203395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438702251 (or 438702248 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 138191203395 in words is "one hundred thirty-eight billion, one hundred ninety-one million, two hundred three thousand, three hundred ninety-five".