138695799 has 8 divisors (see below), whose sum is σ = 201739392. Its totient is φ = 84058040.

The previous prime is 138695789. The next prime is 138695807. The reversal of 138695799 is 997596831.

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

It is not a de Polignac number, because 138695799 - 2⁹ = 138695287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138695749) 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, 2101419 + ... + 2101484.

It is an arithmetic number, because the mean of its divisors is an integer number (25217424).

Almost surely, 2^138695799 is an apocalyptic number.

138695799 is a deficient number, since it is larger than the sum of its proper divisors (63043593).

138695799 is a wasteful number, since it uses less digits than its factorization.

138695799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202917.

The product of its digits is 3674160, while the sum is 57.

The square root of 138695799 is about 11776.9180603416. The cubic root of 138695799 is about 517.6319829528.

The spelling of 138695799 in words is "one hundred thirty-eight million, six hundred ninety-five thousand, seven hundred ninety-nine".