138148683523919 has 8 divisors (see below), whose sum is σ = 139903109136960. Its totient is φ = 136394400613536.

The previous prime is 138148683523901. The next prime is 138148683523931. The reversal of 138148683523919 is 919325386841831.

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

It is a cyclic number.

It is not a de Polignac number, because 138148683523919 - 2²⁰ = 138148682475343 is a prime.

It is a super-2 number, since 2×138148683523919² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138148683523999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33726524 + ... + 37600209.

It is an arithmetic number, because the mean of its divisors is an integer number (17487888642120).

Almost surely, 2^{138148683523919} is an apocalyptic number.

138148683523919 is a deficient number, since it is larger than the sum of its proper divisors (1754425613041).

138148683523919 is an equidigital number, since it uses as much as digits as its factorization.

138148683523919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71351329.

The product of its digits is 268738560, while the sum is 71.

The spelling of 138148683523919 in words is "one hundred thirty-eight trillion, one hundred forty-eight billion, six hundred eighty-three million, five hundred twenty-three thousand, nine hundred nineteen".