64187 has 2 divisors, whose sum is σ = 64188. Its totient is φ = 64186.

The previous prime is 64171. The next prime is 64189. The reversal of 64187 is 78146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64187 - 2⁴ = 64171 is a prime.

Together with 64189, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32093 + 32094.

It is an arithmetic number, because the mean of its divisors is an integer number (32094).

2⁶⁴¹⁸⁷ is an apocalyptic number.

64187 is a deficient number, since it is larger than the sum of its proper divisors (1).

64187 is an equidigital number, since it uses as much as digits as its factorization.

64187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 26.

The square root of 64187 is about 253.3515344339. The cubic root of 64187 is about 40.0389204510.

The spelling of 64187 in words is "sixty-four thousand, one hundred eighty-seven".