136591927 has 4 divisors (see below), whose sum is σ = 136615480. Its totient is φ = 136568376.

The previous prime is 136591919. The next prime is 136591937. The reversal of 136591927 is 729195631.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 729195631 = 71 ⋅10270361.

It is a cyclic number.

It is not a de Polignac number, because 136591927 - 2³ = 136591919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136591937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3724 + ... + 16942.

It is an arithmetic number, because the mean of its divisors is an integer number (34153870).

Almost surely, 2^136591927 is an apocalyptic number.

136591927 is a deficient number, since it is larger than the sum of its proper divisors (23553).

136591927 is a wasteful number, since it uses less digits than its factorization.

136591927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23552.

The product of its digits is 102060, while the sum is 43.

The square root of 136591927 is about 11687.2548958256. The cubic root of 136591927 is about 515.0013221445.

The spelling of 136591927 in words is "one hundred thirty-six million, five hundred ninety-one thousand, nine hundred twenty-seven".