10140643 has 2 divisors, whose sum is σ = 10140644. Its totient is φ = 10140642.

The previous prime is 10140629. The next prime is 10140709. The reversal of 10140643 is 34604101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10140643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10140643.

It is not a weakly prime, because it can be changed into another prime (10140943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5070321 + 5070322.

It is an arithmetic number, because the mean of its divisors is an integer number (5070322).

Almost surely, 2^10140643 is an apocalyptic number.

10140643 is a deficient number, since it is larger than the sum of its proper divisors (1).

10140643 is an equidigital number, since it uses as much as digits as its factorization.

10140643 is an odious number, because the sum of its binary digits is odd.

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

The square root of 10140643 is about 3184.4376269602. The cubic root of 10140643 is about 216.4487911072.

Adding to 10140643 its reverse (34604101), we get a palindrome (44744744).

The spelling of 10140643 in words is "ten million, one hundred forty thousand, six hundred forty-three".