138001496387 has 4 divisors (see below), whose sum is σ = 138006917496. Its totient is φ = 137996075280.

The previous prime is 138001496317. The next prime is 138001496389. The reversal of 138001496387 is 783694100831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783694100831 = 107 ⋅7324243933.

It is a cyclic number.

It is not a de Polignac number, because 138001496387 - 2¹⁸ = 138001234243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138001496389) 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, 2672189 + ... + 2723342.

It is an arithmetic number, because the mean of its divisors is an integer number (34501729374).

Almost surely, 2^138001496387 is an apocalyptic number.

138001496387 is a deficient number, since it is larger than the sum of its proper divisors (5421109).

138001496387 is an equidigital number, since it uses as much as digits as its factorization.

138001496387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5421108.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 138001496387 in words is "one hundred thirty-eight billion, one million, four hundred ninety-six thousand, three hundred eighty-seven".