136423206 has 24 divisors (see below), whose sum is σ = 300431664. Its totient is φ = 44728560.

The previous prime is 136423193. The next prime is 136423207. The reversal of 136423206 is 602324631.

136423206 is a `hidden beast` number, since 1 + 36 + 423 + 206 = 666.

It is a super-2 number, since 2×136423206² = 37222582270636872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136423206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136423207) 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 11 ways as a sum of consecutive naturals, for example, 61026 + ... + 63221.

It is an arithmetic number, because the mean of its divisors is an integer number (12517986).

Almost surely, 2^136423206 is an apocalyptic number.

136423206 is an abundant number, since it is smaller than the sum of its proper divisors (164008458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136423206 is a wasteful number, since it uses less digits than its factorization.

136423206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124316 (or 124313 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 136423206 is about 11680.0345033737. The cubic root of 136423206 is about 514.7891882328.

Adding to 136423206 its reverse (602324631), we get a palindrome (738747837).

The spelling of 136423206 in words is "one hundred thirty-six million, four hundred twenty-three thousand, two hundred six".