135242313 has 16 divisors (see below), whose sum is σ = 185080896. Its totient is φ = 87791360.

The previous prime is 135242311. The next prime is 135242321. The reversal of 135242313 is 313242531.

It is a cyclic number.

It is not a de Polignac number, because 135242313 - 2¹ = 135242311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135242311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104770 + ... + 106052.

It is an arithmetic number, because the mean of its divisors is an integer number (11567556).

Almost surely, 2^135242313 is an apocalyptic number.

It is an amenable number.

135242313 is a deficient number, since it is larger than the sum of its proper divisors (49838583).

135242313 is a wasteful number, since it uses less digits than its factorization.

135242313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184.

The product of its digits is 2160, while the sum is 24.

The square root of 135242313 is about 11629.3728549737. The cubic root of 135242313 is about 513.2995260339.

Adding to 135242313 its reverse (313242531), we get a palindrome (448484844).

The spelling of 135242313 in words is "one hundred thirty-five million, two hundred forty-two thousand, three hundred thirteen".