138336695 has 8 divisors (see below), whose sum is σ = 189718944. Its totient is φ = 94859424.

The previous prime is 138336691. The next prime is 138336703. The reversal of 138336695 is 596633831.

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 138336695 - 2² = 138336691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138336691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1976204 + ... + 1976273.

It is an arithmetic number, because the mean of its divisors is an integer number (23714868).

Almost surely, 2^138336695 is an apocalyptic number.

138336695 is a deficient number, since it is larger than the sum of its proper divisors (51382249).

138336695 is an equidigital number, since it uses as much as digits as its factorization.

138336695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3952489.

The product of its digits is 349920, while the sum is 44.

The square root of 138336695 is about 11761.6620849266. The cubic root of 138336695 is about 517.1848548375.

The spelling of 138336695 in words is "one hundred thirty-eight million, three hundred thirty-six thousand, six hundred ninety-five".