140656163 has 2 divisors, whose sum is σ = 140656164. Its totient is φ = 140656162.

The previous prime is 140656121. The next prime is 140656169. The reversal of 140656163 is 361656041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140656163 - 2¹⁰ = 140655139 is a prime.

It is not a weakly prime, because it can be changed into another prime (140656169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70328081 + 70328082.

It is an arithmetic number, because the mean of its divisors is an integer number (70328082).

Almost surely, 2^140656163 is an apocalyptic number.

140656163 is a deficient number, since it is larger than the sum of its proper divisors (1).

140656163 is an equidigital number, since it uses as much as digits as its factorization.

140656163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 140656163 is about 11859.8551002953. The cubic root of 140656163 is about 520.0593657568.

The spelling of 140656163 in words is "one hundred forty million, six hundred fifty-six thousand, one hundred sixty-three".