138568195 has 4 divisors (see below), whose sum is σ = 166281840. Its totient is φ = 110854552.

The previous prime is 138568189. The next prime is 138568201. The reversal of 138568195 is 591865831.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (138568189) and next prime (138568201).

It is a cyclic number.

It is not a de Polignac number, because 138568195 - 2³ = 138568187 is a prime.

It is a super-2 number, since 2×138568195² = 38402289331116050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13856815 + ... + 13856824.

It is an arithmetic number, because the mean of its divisors is an integer number (41570460).

Almost surely, 2^138568195 is an apocalyptic number.

138568195 is a deficient number, since it is larger than the sum of its proper divisors (27713645).

138568195 is an equidigital number, since it uses as much as digits as its factorization.

138568195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27713644.

The product of its digits is 259200, while the sum is 46.

The square root of 138568195 is about 11771.4992672981. The cubic root of 138568195 is about 517.4731889616.

The spelling of 138568195 in words is "one hundred thirty-eight million, five hundred sixty-eight thousand, one hundred ninety-five".