65135642 has 24 divisors (see below), whose sum is σ = 115421760. Its totient is φ = 27328080.

The previous prime is 65135639. The next prime is 65135657. The reversal of 65135642 is 24653156.

65135642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 65135599 and 65135608.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5042 + ... + 12477.

It is an arithmetic number, because the mean of its divisors is an integer number (4809240).

Almost surely, 2^65135642 is an apocalyptic number.

65135642 is a deficient number, since it is larger than the sum of its proper divisors (50286118).

65135642 is a wasteful number, since it uses less digits than its factorization.

65135642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17558 (or 17545 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 65135642 is about 8070.6655239825. The cubic root of 65135642 is about 402.3520632213.

Adding to 65135642 its reverse (24653156), we get a palindrome (89788798).

The spelling of 65135642 in words is "sixty-five million, one hundred thirty-five thousand, six hundred forty-two".