135240311133 has 6 divisors (see below), whose sum is σ = 195347116094. Its totient is φ = 90160207416.

The previous prime is 135240311131. The next prime is 135240311149. The reversal of 135240311133 is 331113042531.

135240311133 is a `hidden beast` number, since 1 + 3 + 524 + 0 + 3 + 1 + 1 + 133 = 666.

It can be written as a sum of positive squares in only one way, i.e., 112752909369 + 22487401764 = 335787^2 + 149958^2 .

It is not a de Polignac number, because 135240311133 - 2¹ = 135240311131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135240311097 and 135240311106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135240311131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7513350610 + ... + 7513350627.

Almost surely, 2^135240311133 is an apocalyptic number.

It is an amenable number.

135240311133 is a deficient number, since it is larger than the sum of its proper divisors (60106804961).

135240311133 is a wasteful number, since it uses less digits than its factorization.

135240311133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15026701243 (or 15026701240 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 135240311133 its reverse (331113042531), we get a palindrome (466353353664).

The spelling of 135240311133 in words is "one hundred thirty-five billion, two hundred forty million, three hundred eleven thousand, one hundred thirty-three".