64910143 has 2 divisors, whose sum is σ = 64910144. Its totient is φ = 64910142.

The previous prime is 64910129. The next prime is 64910147. The reversal of 64910143 is 34101946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64910143 - 2²¹ = 62812991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64910147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32455071 + 32455072.

It is an arithmetic number, because the mean of its divisors is an integer number (32455072).

Almost surely, 2^64910143 is an apocalyptic number.

64910143 is a deficient number, since it is larger than the sum of its proper divisors (1).

64910143 is an equidigital number, since it uses as much as digits as its factorization.

64910143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 64910143 is about 8056.6831264485. The cubic root of 64910143 is about 401.8872133118.

The spelling of 64910143 in words is "sixty-four million, nine hundred ten thousand, one hundred forty-three".