140006663 has 2 divisors, whose sum is σ = 140006664. Its totient is φ = 140006662.

The previous prime is 140006623. The next prime is 140006683. The reversal of 140006663 is 366600041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140006663 - 2²² = 135812359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140006623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70003331 + 70003332.

It is an arithmetic number, because the mean of its divisors is an integer number (70003332).

Almost surely, 2^140006663 is an apocalyptic number.

140006663 is a deficient number, since it is larger than the sum of its proper divisors (1).

140006663 is an equidigital number, since it uses as much as digits as its factorization.

140006663 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 26.

The square root of 140006663 is about 11832.4411259892. The cubic root of 140006663 is about 519.2576475754.

The spelling of 140006663 in words is "one hundred forty million, six thousand, six hundred sixty-three".