138833401 has 8 divisors (see below), whose sum is σ = 159017600. Its totient is φ = 118736928.

The previous prime is 138833393. The next prime is 138833413. The reversal of 138833401 is 104338831.

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 138833401 - 2³ = 138833393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138833801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18501 + ... + 24898.

It is an arithmetic number, because the mean of its divisors is an integer number (19877200).

Almost surely, 2^138833401 is an apocalyptic number.

It is an amenable number.

138833401 is a deficient number, since it is larger than the sum of its proper divisors (20184199).

138833401 is an equidigital number, since it uses as much as digits as its factorization.

138833401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43863.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 138833401 is about 11782.7586328499. The cubic root of 138833401 is about 517.8031096306.

The spelling of 138833401 in words is "one hundred thirty-eight million, eight hundred thirty-three thousand, four hundred one".