65165243 has 8 divisors (see below), whose sum is σ = 76557936. Its totient is φ = 54684000.

The previous prime is 65165227. The next prime is 65165257. The reversal of 65165243 is 34256156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65165243 - 2⁴ = 65165227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65165273) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 227708 + ... + 227993.

It is an arithmetic number, because the mean of its divisors is an integer number (9569742).

Almost surely, 2^65165243 is an apocalyptic number.

65165243 is a deficient number, since it is larger than the sum of its proper divisors (11392693).

65165243 is a wasteful number, since it uses less digits than its factorization.

65165243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455725.

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

The square root of 65165243 is about 8072.4991793124. The cubic root of 65165243 is about 402.4130038438.

The spelling of 65165243 in words is "sixty-five million, one hundred sixty-five thousand, two hundred forty-three".