135620236 has 24 divisors (see below), whose sum is σ = 249115104. Its totient is φ = 64479360.

The previous prime is 135620231. The next prime is 135620267. The reversal of 135620236 is 632026531.

135620236 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (135620231) 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 7 ways as a sum of consecutive naturals, for example, 11656 + ... + 20176.

It is an arithmetic number, because the mean of its divisors is an integer number (10379796).

Almost surely, 2^135620236 is an apocalyptic number.

It is an amenable number.

135620236 is a deficient number, since it is larger than the sum of its proper divisors (113494868).

135620236 is a wasteful number, since it uses less digits than its factorization.

135620236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8721 (or 8719 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 135620236 is about 11645.6101600560. The cubic root of 135620236 is about 513.7772051431. Note that the first 3 decimals are identical.

Adding to 135620236 its reverse (632026531), we get a palindrome (767646767).

The spelling of 135620236 in words is "one hundred thirty-five million, six hundred twenty thousand, two hundred thirty-six".