136542236 has 12 divisors (see below), whose sum is σ = 239859312. Its totient is φ = 68011008.

The previous prime is 136542223. The next prime is 136542239. The reversal of 136542236 is 632245631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136542239) 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, 63845 + ... + 65948.

It is an arithmetic number, because the mean of its divisors is an integer number (19988276).

Almost surely, 2^136542236 is an apocalyptic number.

It is an amenable number.

136542236 is a deficient number, since it is larger than the sum of its proper divisors (103317076).

136542236 is a wasteful number, since it uses less digits than its factorization.

136542236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130060 (or 130058 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 136542236 is about 11685.1288396834. The cubic root of 136542236 is about 514.9388635128.

Adding to 136542236 its reverse (632245631), we get a palindrome (768787867).

The spelling of 136542236 in words is "one hundred thirty-six million, five hundred forty-two thousand, two hundred thirty-six".