136722136 has 16 divisors (see below), whose sum is σ = 256510800. Its totient is φ = 68319264.

The previous prime is 136722133. The next prime is 136722149. The reversal of 136722136 is 631227631.

It is a junction number, because it is equal to n+sod(n) for n = 136722098 and 136722107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136722133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12021 + ... + 20443.

It is an arithmetic number, because the mean of its divisors is an integer number (16031925).

Almost surely, 2^136722136 is an apocalyptic number.

It is an amenable number.

136722136 is a deficient number, since it is larger than the sum of its proper divisors (119788664).

136722136 is a wasteful number, since it uses less digits than its factorization.

136722136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10458 (or 10454 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 136722136 is about 11692.8241242225. The cubic root of 136722136 is about 515.1649152934.

Adding to 136722136 its reverse (631227631), we get a palindrome (767949767).

The spelling of 136722136 in words is "one hundred thirty-six million, seven hundred twenty-two thousand, one hundred thirty-six".