138232419 has 16 divisors (see below), whose sum is σ = 199181472. Its totient is φ = 84768768.

The previous prime is 138232411. The next prime is 138232421. The reversal of 138232419 is 914232831.

It is not a de Polignac number, because 138232419 - 2³ = 138232411 is a prime.

It is a super-2 number, since 2×138232419² = 38216403325183122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138232419.

It is not an unprimeable number, because it can be changed into a prime (138232411) 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, 5379 + ... + 17475.

It is an arithmetic number, because the mean of its divisors is an integer number (12448842).

Almost surely, 2^138232419 is an apocalyptic number.

138232419 is a deficient number, since it is larger than the sum of its proper divisors (60949053).

138232419 is a wasteful number, since it uses less digits than its factorization.

138232419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12406.

The product of its digits is 10368, while the sum is 33.

The square root of 138232419 is about 11757.2283723674. The cubic root of 138232419 is about 517.0548736007.

The spelling of 138232419 in words is "one hundred thirty-eight million, two hundred thirty-two thousand, four hundred nineteen".