240120135 has 12 divisors (see below), whose sum is σ = 416208312. Its totient is φ = 128064048.

The previous prime is 240120073. The next prime is 240120169. The reversal of 240120135 is 531021042.

It is not a de Polignac number, because 240120135 - 2¹⁰ = 240119111 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2667957 + ... + 2668046.

It is an arithmetic number, because the mean of its divisors is an integer number (34684026).

Almost surely, 2^240120135 is an apocalyptic number.

240120135 is a deficient number, since it is larger than the sum of its proper divisors (176088177).

240120135 is a wasteful number, since it uses less digits than its factorization.

240120135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5336014 (or 5336011 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 240120135 is about 15495.8102401907. The cubic root of 240120135 is about 621.5501748324.

Adding to 240120135 its reverse (531021042), we get a palindrome (771141177).

The spelling of 240120135 in words is "two hundred forty million, one hundred twenty thousand, one hundred thirty-five".