140362643 has 2 divisors, whose sum is σ = 140362644. Its totient is φ = 140362642.

The previous prime is 140362631. The next prime is 140362657. The reversal of 140362643 is 346263041.

140362643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (346263041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140362643 - 2¹⁴ = 140346259 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (140362613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70181321 + 70181322.

It is an arithmetic number, because the mean of its divisors is an integer number (70181322).

Almost surely, 2^140362643 is an apocalyptic number.

140362643 is a deficient number, since it is larger than the sum of its proper divisors (1).

140362643 is an equidigital number, since it uses as much as digits as its factorization.

140362643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 140362643 is about 11847.4741189842. The cubic root of 140362643 is about 519.6973621151.

It can be divided in two parts, 1403 and 62643, that added together give a palindrome (64046).

The spelling of 140362643 in words is "one hundred forty million, three hundred sixty-two thousand, six hundred forty-three".