136606231 has 4 divisors (see below), whose sum is σ = 136663312. Its totient is φ = 136549152.

The previous prime is 136606207. The next prime is 136606241. The reversal of 136606231 is 132606631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132606631 = 37 ⋅3583963.

It is a cyclic number.

It is not a de Polignac number, because 136606231 - 2⁹ = 136605719 is a prime.

It is a super-2 number, since 2×136606231² = 37322524696050722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136606231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136606241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24786 + ... + 29791.

It is an arithmetic number, because the mean of its divisors is an integer number (34165828).

Almost surely, 2^136606231 is an apocalyptic number.

136606231 is a deficient number, since it is larger than the sum of its proper divisors (57081).

136606231 is an equidigital number, since it uses as much as digits as its factorization.

136606231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57080.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 136606231 is about 11687.8668284679. The cubic root of 136606231 is about 515.0192986139.

It can be divided in two parts, 13660 and 6231, that added together give a palindrome (19891).

The spelling of 136606231 in words is "one hundred thirty-six million, six hundred six thousand, two hundred thirty-one".