136138671 has 16 divisors (see below), whose sum is σ = 203476320. Its totient is φ = 89953920.

The previous prime is 136138643. The next prime is 136138693. The reversal of 136138671 is 176831631.

It is not a de Polignac number, because 136138671 - 2⁷ = 136138543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136138621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19260 + ... + 25361.

It is an arithmetic number, because the mean of its divisors is an integer number (12717270).

Almost surely, 2^136138671 is an apocalyptic number.

136138671 is a deficient number, since it is larger than the sum of its proper divisors (67337649).

136138671 is a wasteful number, since it uses less digits than its factorization.

136138671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44743 (or 44737 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 136138671 is about 11667.8477449785. The cubic root of 136138671 is about 514.4310441462.

The spelling of 136138671 in words is "one hundred thirty-six million, one hundred thirty-eight thousand, six hundred seventy-one".