138494795 has 4 divisors (see below), whose sum is σ = 166193760. Its totient is φ = 110795832.

The previous prime is 138494789. The next prime is 138494803. The reversal of 138494795 is 597494831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 597494831 = 11681 ⋅51151.

It is a cyclic number.

It is not a de Polignac number, because 138494795 - 2⁴ = 138494779 is a prime.

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, 13849475 + ... + 13849484.

It is an arithmetic number, because the mean of its divisors is an integer number (41548440).

Almost surely, 2^138494795 is an apocalyptic number.

138494795 is a deficient number, since it is larger than the sum of its proper divisors (27698965).

138494795 is an equidigital number, since it uses as much as digits as its factorization.

138494795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27698964.

The product of its digits is 1088640, while the sum is 50.

The square root of 138494795 is about 11768.3811546024. The cubic root of 138494795 is about 517.3818037763.

The spelling of 138494795 in words is "one hundred thirty-eight million, four hundred ninety-four thousand, seven hundred ninety-five".