65134939 has 4 divisors (see below), whose sum is σ = 68966424. Its totient is φ = 61303456.

The previous prime is 65134931. The next prime is 65134961. The reversal of 65134939 is 93943156.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65134939 - 2³ = 65134931 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65134931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1915717 + ... + 1915750.

It is an arithmetic number, because the mean of its divisors is an integer number (17241606).

Almost surely, 2^65134939 is an apocalyptic number.

65134939 is a deficient number, since it is larger than the sum of its proper divisors (3831485).

65134939 is a wasteful number, since it uses less digits than its factorization.

65134939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831484.

The product of its digits is 87480, while the sum is 40.

The square root of 65134939 is about 8070.6219710751. The cubic root of 65134939 is about 402.3506157060.

The spelling of 65134939 in words is "sixty-five million, one hundred thirty-four thousand, nine hundred thirty-nine".