138897158419 has 2 divisors, whose sum is σ = 138897158420. Its totient is φ = 138897158418.

The previous prime is 138897158399. The next prime is 138897158443. The reversal of 138897158419 is 914851798831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138897158419 - 2¹⁵ = 138897125651 is a prime.

It is a super-2 number, since 2×138897158419² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (138897458419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69448579209 + 69448579210.

It is an arithmetic number, because the mean of its divisors is an integer number (69448579210).

Almost surely, 2^138897158419 is an apocalyptic number.

138897158419 is a deficient number, since it is larger than the sum of its proper divisors (1).

138897158419 is an equidigital number, since it uses as much as digits as its factorization.

138897158419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17418240, while the sum is 64.

The spelling of 138897158419 in words is "one hundred thirty-eight billion, eight hundred ninety-seven million, one hundred fifty-eight thousand, four hundred nineteen".