135651217 has 8 divisors (see below), whose sum is σ = 152437824. Its totient is φ = 119772048.

The previous prime is 135651199. The next prime is 135651227. The reversal of 135651217 is 712156531.

135651217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135651217 - 2²³ = 127262609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135651227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226543 + ... + 227140.

It is an arithmetic number, because the mean of its divisors is an integer number (19054728).

Almost surely, 2^135651217 is an apocalyptic number.

It is an amenable number.

135651217 is a deficient number, since it is larger than the sum of its proper divisors (16786607).

135651217 is a wasteful number, since it uses less digits than its factorization.

135651217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453719.

The product of its digits is 6300, while the sum is 31.

The square root of 135651217 is about 11646.9402419691. The cubic root of 135651217 is about 513.8163244765.

The spelling of 135651217 in words is "one hundred thirty-five million, six hundred fifty-one thousand, two hundred seventeen".