135217641 has 8 divisors (see below), whose sum is σ = 194158720. Its totient is φ = 83210832.

The previous prime is 135217627. The next prime is 135217651. The reversal of 135217641 is 146712531.

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

It is not a de Polignac number, because 135217641 - 2¹⁰ = 135216617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135217599 and 135217608.

It is not an unprimeable number, because it can be changed into a prime (135217651) 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, 1733521 + ... + 1733598.

It is an arithmetic number, because the mean of its divisors is an integer number (24269840).

Almost surely, 2^135217641 is an apocalyptic number.

It is an amenable number.

135217641 is a deficient number, since it is larger than the sum of its proper divisors (58941079).

135217641 is a wasteful number, since it uses less digits than its factorization.

135217641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3467135.

The product of its digits is 5040, while the sum is 30.

The square root of 135217641 is about 11628.3120443167. The cubic root of 135217641 is about 513.2683107143.

The spelling of 135217641 in words is "one hundred thirty-five million, two hundred seventeen thousand, six hundred forty-one".