138633395 has 8 divisors (see below), whose sum is σ = 171726720. Its totient is φ = 107328960.

The previous prime is 138633389. The next prime is 138633403. The reversal of 138633395 is 593336831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138633395 - 2⁴ = 138633379 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447050 + ... + 447359.

It is an arithmetic number, because the mean of its divisors is an integer number (21465840).

Almost surely, 2^138633395 is an apocalyptic number.

138633395 is a deficient number, since it is larger than the sum of its proper divisors (33093325).

138633395 is an equidigital number, since it uses as much as digits as its factorization.

138633395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894445.

The product of its digits is 174960, while the sum is 41.

The square root of 138633395 is about 11774.2683424491. The cubic root of 138633395 is about 517.5543378418.

The spelling of 138633395 in words is "one hundred thirty-eight million, six hundred thirty-three thousand, three hundred ninety-five".