140163563 has 4 divisors (see below), whose sum is σ = 140205360. Its totient is φ = 140121768.

The previous prime is 140163553. The next prime is 140163571. The reversal of 140163563 is 365361041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140163563 - 2⁴ = 140163547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140163553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15383 + ... + 22736.

It is an arithmetic number, because the mean of its divisors is an integer number (35051340).

Almost surely, 2^140163563 is an apocalyptic number.

140163563 is a deficient number, since it is larger than the sum of its proper divisors (41797).

140163563 is an equidigital number, since it uses as much as digits as its factorization.

140163563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41796.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 140163563 is about 11839.0693468701. The cubic root of 140163563 is about 519.4515457517.

The spelling of 140163563 in words is "one hundred forty million, one hundred sixty-three thousand, five hundred sixty-three".