65540343 has 8 divisors (see below), whose sum is σ = 95331456. Its totient is φ = 39721400.

The previous prime is 65540341. The next prime is 65540353. The reversal of 65540343 is 34304556.

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 65540343 - 2¹ = 65540341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65540343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65540341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 993003 + ... + 993068.

It is an arithmetic number, because the mean of its divisors is an integer number (11916432).

Almost surely, 2^65540343 is an apocalyptic number.

65540343 is a deficient number, since it is larger than the sum of its proper divisors (29791113).

65540343 is a wasteful number, since it uses less digits than its factorization.

65540343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986085.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 65540343 is about 8095.6990433192. The cubic root of 65540343 is about 403.1836417545.

Adding to 65540343 its reverse (34304556), we get a palindrome (99844899).

The spelling of 65540343 in words is "sixty-five million, five hundred forty thousand, three hundred forty-three".