140445583 has 2 divisors, whose sum is σ = 140445584. Its totient is φ = 140445582.

The previous prime is 140445563. The next prime is 140445589. The reversal of 140445583 is 385544041.

It is a strong prime.

It is an emirp because it is prime and its reverse (385544041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140445583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140445589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70222791 + 70222792.

It is an arithmetic number, because the mean of its divisors is an integer number (70222792).

Almost surely, 2^140445583 is an apocalyptic number.

140445583 is a deficient number, since it is larger than the sum of its proper divisors (1).

140445583 is an equidigital number, since it uses as much as digits as its factorization.

140445583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 140445583 is about 11850.9739262223. The cubic root of 140445583 is about 519.7997046642.

The spelling of 140445583 in words is "one hundred forty million, four hundred forty-five thousand, five hundred eighty-three".