64123 has 2 divisors, whose sum is σ = 64124. Its totient is φ = 64122.

The previous prime is 64109. The next prime is 64151. The reversal of 64123 is 32146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64123 - 2⁵ = 64091 is a prime.

It is a super-2 number, since 2×64123² = 8223518258, which contains 22 as substring.

64123 is a lucky number.

It is equal to p₆₄₂₄ and since 64123 and 6424 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 64097 and 64106.

It is not a weakly prime, because it can be changed into another prime (64153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32061 + 32062.

It is an arithmetic number, because the mean of its divisors is an integer number (32062).

2⁶⁴¹²³ is an apocalyptic number.

64123 is a deficient number, since it is larger than the sum of its proper divisors (1).

64123 is an equidigital number, since it uses as much as digits as its factorization.

64123 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 64123 is about 253.2251962187. The cubic root of 64123 is about 40.0256086015.

Adding to 64123 its reverse (32146), we get a palindrome (96269).

The spelling of 64123 in words is "sixty-four thousand, one hundred twenty-three".