65135232 has 128 divisors (see below), whose sum is σ = 196819200. Its totient is φ = 21196800.

The previous prime is 65135221. The next prime is 65135293. The reversal of 65135232 is 23253156.

65135232 is a `hidden beast` number, since 651 + 3 + 5 + 2 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 65135196 and 65135205.

It is a congruent number.

It is an unprimeable number.

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, 162232 + ... + 162632.

It is an arithmetic number, because the mean of its divisors is an integer number (1537650).

Almost surely, 2^65135232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65135232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98409600).

65135232 is an abundant number, since it is smaller than the sum of its proper divisors (131683968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65135232 is a wasteful number, since it uses less digits than its factorization.

65135232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 453 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 65135232 is about 8070.6401233112. The cubic root of 65135232 is about 402.3512190102.

Adding to 65135232 its reverse (23253156), we get a palindrome (88388388).

The spelling of 65135232 in words is "sixty-five million, one hundred thirty-five thousand, two hundred thirty-two".