65013243 has 8 divisors (see below), whose sum is σ = 86803968. Its totient is φ = 43282344.

The previous prime is 65013217. The next prime is 65013257. The reversal of 65013243 is 34231056.

It is a happy number.

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

It is not a de Polignac number, because 65013243 - 2⁵ = 65013211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65013943) 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, 12355 + ... + 16812.

It is an arithmetic number, because the mean of its divisors is an integer number (10850496).

Almost surely, 2^65013243 is an apocalyptic number.

65013243 is a deficient number, since it is larger than the sum of its proper divisors (21790725).

65013243 is a wasteful number, since it uses less digits than its factorization.

65013243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29913.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 65013243 is about 8063.0790024655. The cubic root of 65013243 is about 402.0998798874.

Adding to 65013243 its reverse (34231056), we get a palindrome (99244299).

It can be divided in two parts, 65013 and 243, that added together give a palindrome (65256).

The spelling of 65013243 in words is "sixty-five million, thirteen thousand, two hundred forty-three".