10640143 has 2 divisors, whose sum is σ = 10640144. Its totient is φ = 10640142.

The previous prime is 10640107. The next prime is 10640159. The reversal of 10640143 is 34104601.

It is a happy number.

10640143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10640143 - 2⁹ = 10639631 is a prime.

It is a super-2 number, since 2×10640143² = 226425286120898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10640143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10640173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5320071 + 5320072.

It is an arithmetic number, because the mean of its divisors is an integer number (5320072).

Almost surely, 2^10640143 is an apocalyptic number.

10640143 is a deficient number, since it is larger than the sum of its proper divisors (1).

10640143 is an equidigital number, since it uses as much as digits as its factorization.

10640143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 10640143 is about 3261.9232057178. The cubic root of 10640143 is about 219.9458751149.

Adding to 10640143 its reverse (34104601), we get a palindrome (44744744).

The spelling of 10640143 in words is "ten million, six hundred forty thousand, one hundred forty-three".