138326419 has 16 divisors (see below), whose sum is σ = 173615616. Its totient is φ = 107064000.

The previous prime is 138326417. The next prime is 138326423. The reversal of 138326419 is 914623831.

138326419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 138326419 - 2¹ = 138326417 is a prime.

It is a super-2 number, since 2×138326419² = 38268396386727122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138326411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5679 + ... + 17575.

It is an arithmetic number, because the mean of its divisors is an integer number (10850976).

Almost surely, 2^138326419 is an apocalyptic number.

138326419 is a deficient number, since it is larger than the sum of its proper divisors (35289197).

138326419 is a wasteful number, since it uses less digits than its factorization.

138326419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12066.

The product of its digits is 31104, while the sum is 37.

The square root of 138326419 is about 11761.2252337926. The cubic root of 138326419 is about 517.1720485869.

The spelling of 138326419 in words is "one hundred thirty-eight million, three hundred twenty-six thousand, four hundred nineteen".