135240355 has 16 divisors (see below), whose sum is σ = 174658464. Its totient is φ = 100154880.

The previous prime is 135240353. The next prime is 135240359. The reversal of 135240355 is 553042531.

It is not a de Polignac number, because 135240355 - 2¹ = 135240353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135240353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7857 + ... + 18226.

It is an arithmetic number, because the mean of its divisors is an integer number (10916154).

Almost surely, 2^135240355 is an apocalyptic number.

135240355 is a deficient number, since it is larger than the sum of its proper divisors (39418109).

135240355 is a wasteful number, since it uses less digits than its factorization.

135240355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26166.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 135240355 is about 11629.2886712817. The cubic root of 135240355 is about 513.2970488868.

Adding to 135240355 its reverse (553042531), we get a palindrome (688282886).

The spelling of 135240355 in words is "one hundred thirty-five million, two hundred forty thousand, three hundred fifty-five".