65138032 has 40 divisors (see below), whose sum is σ = 128898000. Its totient is φ = 31882752.

The previous prime is 65138011. The next prime is 65138063. The reversal of 65138032 is 23083156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212023 + ... + 212329.

It is an arithmetic number, because the mean of its divisors is an integer number (3222450).

Almost surely, 2^65138032 is an apocalyptic number.

It is an amenable number.

65138032 is a deficient number, since it is larger than the sum of its proper divisors (63759968).

65138032 is a wasteful number, since it uses less digits than its factorization.

65138032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 65138032 is about 8070.8135897194. The cubic root of 65138032 is about 402.3569842837.

It can be divided in two parts, 651 and 38032, that added together give a palindrome (38683).

The spelling of 65138032 in words is "sixty-five million, one hundred thirty-eight thousand, thirty-two".