135617220233 has 12 divisors (see below), whose sum is σ = 149181088560. Its totient is φ = 123193909080.

The previous prime is 135617220191. The next prime is 135617220257. The reversal of 135617220233 is 332022716531.

It is not a de Polignac number, because 135617220233 - 2¹⁸ = 135616958089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 135617220193 and 135617220202.

It is not an unprimeable number, because it can be changed into a prime (135617220133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270623 + ... + 586916.

It is an arithmetic number, because the mean of its divisors is an integer number (12431757380).

Almost surely, 2^135617220233 is an apocalyptic number.

It is an amenable number.

135617220233 is a deficient number, since it is larger than the sum of its proper divisors (13563868327).

135617220233 is a wasteful number, since it uses less digits than its factorization.

135617220233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858868 (or 858857 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 35.

Adding to 135617220233 its reverse (332022716531), we get a palindrome (467639936764).

The spelling of 135617220233 in words is "one hundred thirty-five billion, six hundred seventeen million, two hundred twenty thousand, two hundred thirty-three".