65040365 has 8 divisors (see below), whose sum is σ = 84052248. Its totient is φ = 48029760.

The previous prime is 65040341. The next prime is 65040373. The reversal of 65040365 is 56304056.

It can be written as a sum of positive squares in 4 ways, for example, as 8444836 + 56595529 = 2906^2 + 7523^2 .

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

It is not a de Polignac number, because 65040365 - 2⁸ = 65040109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 500246 + ... + 500375.

It is an arithmetic number, because the mean of its divisors is an integer number (10506531).

Almost surely, 2^65040365 is an apocalyptic number.

65040365 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

65040365 is a deficient number, since it is larger than the sum of its proper divisors (19011883).

65040365 is a wasteful number, since it uses less digits than its factorization.

65040365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000639.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 65040365 is about 8064.7606908079. The cubic root of 65040365 is about 402.1557876596.

The spelling of 65040365 in words is "sixty-five million, forty thousand, three hundred sixty-five".