65412231 has 8 divisors (see below), whose sum is σ = 91806720. Its totient is φ = 41312952.

The previous prime is 65412227. The next prime is 65412233. The reversal of 65412231 is 13221456.

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

It is not a de Polignac number, because 65412231 - 2² = 65412227 is a prime.

It is a super-2 number, since 2×65412231² = 8557519928794722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65412233) 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, 573735 + ... + 573848.

It is an arithmetic number, because the mean of its divisors is an integer number (11475840).

Almost surely, 2^65412231 is an apocalyptic number.

65412231 is a deficient number, since it is larger than the sum of its proper divisors (26394489).

65412231 is a wasteful number, since it uses less digits than its factorization.

65412231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147605.

The product of its digits is 1440, while the sum is 24.

The square root of 65412231 is about 8087.7828234937. The cubic root of 65412231 is about 402.9207687811.

Adding to 65412231 its reverse (13221456), we get a palindrome (78633687).

The spelling of 65412231 in words is "sixty-five million, four hundred twelve thousand, two hundred thirty-one".