65004231 has 16 divisors (see below), whose sum is σ = 87696000. Its totient is φ = 42828000.

The previous prime is 65004217. The next prime is 65004239. The reversal of 65004231 is 13240056.

It is a happy number.

It is not a de Polignac number, because 65004231 - 2¹⁰ = 65003207 is a prime.

It is a super-2 number, since 2×65004231² = 8451100095802722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65004198 and 65004207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65004239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130020 + ... + 130518.

It is an arithmetic number, because the mean of its divisors is an integer number (5481000).

Almost surely, 2^65004231 is an apocalyptic number.

65004231 is a deficient number, since it is larger than the sum of its proper divisors (22691769).

65004231 is a wasteful number, since it uses less digits than its factorization.

65004231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 65004231 is about 8062.5201395097. The cubic root of 65004231 is about 402.0812996136.

Adding to 65004231 its reverse (13240056), we get a palindrome (78244287).

It can be divided in two parts, 6500 and 4231, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 65004231 in words is "sixty-five million, four thousand, two hundred thirty-one".