140783663 has 4 divisors (see below), whose sum is σ = 141118488. Its totient is φ = 140448840.

The previous prime is 140783653. The next prime is 140783689. The reversal of 140783663 is 366387041.

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 140783663 - 2¹⁸ = 140521519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140783653) 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 in 3 ways as a sum of consecutive naturals, for example, 166781 + ... + 167622.

It is an arithmetic number, because the mean of its divisors is an integer number (35279622).

Almost surely, 2^140783663 is an apocalyptic number.

140783663 is a deficient number, since it is larger than the sum of its proper divisors (334825).

140783663 is an equidigital number, since it uses as much as digits as its factorization.

140783663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334824.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 140783663 is about 11865.2291591861. The cubic root of 140783663 is about 520.2164569751.

The spelling of 140783663 in words is "one hundred forty million, seven hundred eighty-three thousand, six hundred sixty-three".