138313195 has 4 divisors (see below), whose sum is σ = 165975840. Its totient is φ = 110650552.

The previous prime is 138313181. The next prime is 138313271. The reversal of 138313195 is 591313831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 591313831 = 23 ⋅25709297.

It is a cyclic number.

It is not a de Polignac number, because 138313195 - 2⁵ = 138313163 is a prime.

It is a super-2 number, since 2×138313195² = 38261079822216050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138313195.

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, 13831315 + ... + 13831324.

It is an arithmetic number, because the mean of its divisors is an integer number (41493960).

Almost surely, 2^138313195 is an apocalyptic number.

138313195 is a deficient number, since it is larger than the sum of its proper divisors (27662645).

138313195 is an equidigital number, since it uses as much as digits as its factorization.

138313195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27662644.

The product of its digits is 9720, while the sum is 34.

The square root of 138313195 is about 11760.6630340300. The cubic root of 138313195 is about 517.1555675194.

The spelling of 138313195 in words is "one hundred thirty-eight million, three hundred thirteen thousand, one hundred ninety-five".