140456663 has 2 divisors, whose sum is σ = 140456664. Its totient is φ = 140456662.

The previous prime is 140456623. The next prime is 140456689. The reversal of 140456663 is 366654041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140456663 - 2¹⁰ = 140455639 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140456623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70228331 + 70228332.

It is an arithmetic number, because the mean of its divisors is an integer number (70228332).

Almost surely, 2^140456663 is an apocalyptic number.

140456663 is a deficient number, since it is larger than the sum of its proper divisors (1).

140456663 is an equidigital number, since it uses as much as digits as its factorization.

140456663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 140456663 is about 11851.4413891307. The cubic root of 140456663 is about 519.8133736102.

The spelling of 140456663 in words is "one hundred forty million, four hundred fifty-six thousand, six hundred sixty-three".