140063647 has 2 divisors, whose sum is σ = 140063648. Its totient is φ = 140063646.

The previous prime is 140063641. The next prime is 140063681. The reversal of 140063647 is 746360041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140063647 - 2³ = 140063639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140063641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70031823 + 70031824.

It is an arithmetic number, because the mean of its divisors is an integer number (70031824).

Almost surely, 2^140063647 is an apocalyptic number.

140063647 is a deficient number, since it is larger than the sum of its proper divisors (1).

140063647 is an equidigital number, since it uses as much as digits as its factorization.

140063647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 140063647 is about 11834.8488372264. The cubic root of 140063647 is about 519.3280855667.

The spelling of 140063647 in words is "one hundred forty million, sixty-three thousand, six hundred forty-seven".