138421341 has 12 divisors (see below), whose sum is σ = 202351968. Its totient is φ = 91168584.

The previous prime is 138421333. The next prime is 138421363. The reversal of 138421341 is 143124831.

It is not a de Polignac number, because 138421341 - 2³ = 138421333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138421301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91905 + ... + 93398.

It is an arithmetic number, because the mean of its divisors is an integer number (16862664).

Almost surely, 2^138421341 is an apocalyptic number.

It is an amenable number.

138421341 is a deficient number, since it is larger than the sum of its proper divisors (63930627).

138421341 is a wasteful number, since it uses less digits than its factorization.

138421341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185392 (or 185389 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 138421341 is about 11765.2599206307. The cubic root of 138421341 is about 517.2903190296.

The spelling of 138421341 in words is "one hundred thirty-eight million, four hundred twenty-one thousand, three hundred forty-one".