136424285 has 4 divisors (see below), whose sum is σ = 163709148. Its totient is φ = 109139424.

The previous prime is 136424257. The next prime is 136424287. The reversal of 136424285 is 582424631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20259001 + 116165284 = 4501^2 + 10778^2 .

It is a cyclic number.

It is not a de Polignac number, because 136424285 - 2¹⁶ = 136358749 is a prime.

It is a super-2 number, since 2×136424285² = 37223171075522450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136424287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13642424 + ... + 13642433.

It is an arithmetic number, because the mean of its divisors is an integer number (40927287).

Almost surely, 2^136424285 is an apocalyptic number.

It is an amenable number.

136424285 is a deficient number, since it is larger than the sum of its proper divisors (27284863).

136424285 is an equidigital number, since it uses as much as digits as its factorization.

136424285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27284862.

The product of its digits is 46080, while the sum is 35.

The square root of 136424285 is about 11680.0806932144. The cubic root of 136424285 is about 514.7905454214.

The spelling of 136424285 in words is "one hundred thirty-six million, four hundred twenty-four thousand, two hundred eighty-five".