136731236 has 12 divisors (see below), whose sum is σ = 240520812. Its totient is φ = 68011008.

The previous prime is 136731223. The next prime is 136731241. The reversal of 136731236 is 632137631.

It can be written as a sum of positive squares in 2 ways, for example, as 49420900 + 87310336 = 7030^2 + 9344^2 .

It is an unprimeable number.

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, 87785 + ... + 89328.

It is an arithmetic number, because the mean of its divisors is an integer number (20043401).

Almost surely, 2^136731236 is an apocalyptic number.

It is an amenable number.

136731236 is a deficient number, since it is larger than the sum of its proper divisors (103789576).

136731236 is a wasteful number, since it uses less digits than its factorization.

136731236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177310 (or 177308 counting only the distinct ones).

The product of its digits is 13608, while the sum is 32.

The square root of 136731236 is about 11693.2132452975. The cubic root of 136731236 is about 515.1763445490.

Adding to 136731236 its reverse (632137631), we get a palindrome (768868867).

The spelling of 136731236 in words is "one hundred thirty-six million, seven hundred thirty-one thousand, two hundred thirty-six".