136236427 has 4 divisors (see below), whose sum is σ = 139404760. Its totient is φ = 133068096.

The previous prime is 136236407. The next prime is 136236431. The reversal of 136236427 is 724632631.

136236427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724632631 = 59 ⋅12281909.

It is a cyclic number.

It is not a de Polignac number, because 136236427 - 2⁷ = 136236299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136236392 and 136236401.

It is not an unprimeable number, because it can be changed into a prime (136236407) 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, 1584102 + ... + 1584187.

It is an arithmetic number, because the mean of its divisors is an integer number (34851190).

Almost surely, 2^136236427 is an apocalyptic number.

136236427 is a deficient number, since it is larger than the sum of its proper divisors (3168333).

136236427 is an equidigital number, since it uses as much as digits as its factorization.

136236427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3168332.

The product of its digits is 36288, while the sum is 34.

The square root of 136236427 is about 11672.0361120072. The cubic root of 136236427 is about 514.5541458062.

The spelling of 136236427 in words is "one hundred thirty-six million, two hundred thirty-six thousand, four hundred twenty-seven".