138169107 has 6 divisors (see below), whose sum is σ = 199577612. Its totient is φ = 92112732.

The previous prime is 138169099. The next prime is 138169117. The reversal of 138169107 is 701961831.

It is not a de Polignac number, because 138169107 - 2³ = 138169099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138169117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7676053 + ... + 7676070.

Almost surely, 2^138169107 is an apocalyptic number.

138169107 is a deficient number, since it is larger than the sum of its proper divisors (61408505).

138169107 is a wasteful number, since it uses less digits than its factorization.

138169107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15352129 (or 15352126 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 138169107 is about 11754.5355926978. The cubic root of 138169107 is about 516.9759225668.

The spelling of 138169107 in words is "one hundred thirty-eight million, one hundred sixty-nine thousand, one hundred seven".