135523611241 has 4 divisors (see below), whose sum is σ = 135554022612. Its totient is φ = 135493199872.

The previous prime is 135523611187. The next prime is 135523611263. The reversal of 135523611241 is 142116325531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142116325531 = 3593 ⋅39553667.

It can be written as a sum of positive squares in 2 ways, for example, as 119373014016 + 16150597225 = 345504^2 + 127085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135523611241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135523611197 and 135523611206.

It is not an unprimeable number, because it can be changed into a prime (135523611271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15199000 + ... + 15207913.

It is an arithmetic number, because the mean of its divisors is an integer number (33888505653).

Almost surely, 2^135523611241 is an apocalyptic number.

It is an amenable number.

135523611241 is a deficient number, since it is larger than the sum of its proper divisors (30411371).

135523611241 is an equidigital number, since it uses as much as digits as its factorization.

135523611241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30411370.

The product of its digits is 21600, while the sum is 34.

Adding to 135523611241 its reverse (142116325531), we get a palindrome (277639936772).

The spelling of 135523611241 in words is "one hundred thirty-five billion, five hundred twenty-three million, six hundred eleven thousand, two hundred forty-one".