140568863 has 4 divisors (see below), whose sum is σ = 140615280. Its totient is φ = 140522448.

The previous prime is 140568839. The next prime is 140568877. The reversal of 140568863 is 368865041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368865041 = 1663 ⋅221807.

It is a cyclic number.

It is not a de Polignac number, because 140568863 - 2¹⁰ = 140567839 is a prime.

It is a super-2 number, since 2×140568863² = 39519210490225538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140568863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140528863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18323 + ... + 24836.

It is an arithmetic number, because the mean of its divisors is an integer number (35153820).

Almost surely, 2^140568863 is an apocalyptic number.

140568863 is a deficient number, since it is larger than the sum of its proper divisors (46417).

140568863 is an equidigital number, since it uses as much as digits as its factorization.

140568863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46416.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 140568863 is about 11856.1740456186. The cubic root of 140568863 is about 519.9517497144.

The spelling of 140568863 in words is "one hundred forty million, five hundred sixty-eight thousand, eight hundred sixty-three".