65134231 has 2 divisors, whose sum is σ = 65134232. Its totient is φ = 65134230.

The previous prime is 65134159. The next prime is 65134243. The reversal of 65134231 is 13243156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65134231 - 2⁷ = 65134103 is a prime.

It is a super-2 number, since 2×65134231² = 8484936095922722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65134196 and 65134205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65134271) by changing a digit.

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 as a sum of consecutive naturals, namely, 32567115 + 32567116.

It is an arithmetic number, because the mean of its divisors is an integer number (32567116).

Almost surely, 2^65134231 is an apocalyptic number.

65134231 is a deficient number, since it is larger than the sum of its proper divisors (1).

65134231 is an equidigital number, since it uses as much as digits as its factorization.

65134231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 25.

The square root of 65134231 is about 8070.5781081655. The cubic root of 65134231 is about 402.3491578849.

Adding to 65134231 its reverse (13243156), we get a palindrome (78377387).

The spelling of 65134231 in words is "sixty-five million, one hundred thirty-four thousand, two hundred thirty-one".