135216120 has 64 divisors (see below), whose sum is σ = 436857120. Its totient is φ = 33283584.

The previous prime is 135216083. The next prime is 135216127. The reversal of 135216120 is 21612531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135216127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41779 + ... + 44898.

Almost surely, 2^135216120 is an apocalyptic number.

135216120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135216120 is an abundant number, since it is smaller than the sum of its proper divisors (301641000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135216120 is a wasteful number, since it uses less digits than its factorization.

135216120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86704 (or 86700 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 135216120 is about 11628.2466434110. The cubic root of 135216120 is about 513.2663862020.

Adding to 135216120 its reverse (21612531), we get a palindrome (156828651).

The spelling of 135216120 in words is "one hundred thirty-five million, two hundred sixteen thousand, one hundred twenty".