140663177 has 2 divisors, whose sum is σ = 140663178. Its totient is φ = 140663176.

The previous prime is 140663143. The next prime is 140663179. The reversal of 140663177 is 771366041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132043081 + 8620096 = 11491^2 + 2936^2 .

It is a cyclic number.

It is not a de Polignac number, because 140663177 - 2¹² = 140659081 is a prime.

It is a super-2 number, since 2×140663177² = 39572258727466658, which contains 22 as substring.

Together with 140663179, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140663179) 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, 70331588 + 70331589.

It is an arithmetic number, because the mean of its divisors is an integer number (70331589).

Almost surely, 2^140663177 is an apocalyptic number.

It is an amenable number.

140663177 is a deficient number, since it is larger than the sum of its proper divisors (1).

140663177 is an equidigital number, since it uses as much as digits as its factorization.

140663177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 140663177 is about 11860.1508000531. The cubic root of 140663177 is about 520.0680100889.

The spelling of 140663177 in words is "one hundred forty million, six hundred sixty-three thousand, one hundred seventy-seven".