64231 has 2 divisors, whose sum is σ = 64232. Its totient is φ = 64230.

The previous prime is 64223. The next prime is 64237. The reversal of 64231 is 13246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64231 - 2³ = 64223 is a prime.

It is a super-2 number, since 2×64231² = 8251242722, which contains 22 as substring.

It is equal to p₆₄₃₃ and since 64231 and 6433 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32115 + 32116.

It is an arithmetic number, because the mean of its divisors is an integer number (32116).

2⁶⁴²³¹ is an apocalyptic number.

64231 is a deficient number, since it is larger than the sum of its proper divisors (1).

64231 is an equidigital number, since it uses as much as digits as its factorization.

64231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 16.

The square root of 64231 is about 253.4383554240. The cubic root of 64231 is about 40.0480672154.

Adding to 64231 its reverse (13246), we get a palindrome (77477).

The spelling of 64231 in words is "sixty-four thousand, two hundred thirty-one".