140443855 has 8 divisors (see below), whose sum is σ = 168669792. Its totient is φ = 112263648.

The previous prime is 140443829. The next prime is 140443867. The reversal of 140443855 is 558344041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140443855 - 2⁹ = 140443343 is a prime.

It is a super-2 number, since 2×140443855² = 39448952814522050, 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 140443855.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4264 + ... + 17293.

It is an arithmetic number, because the mean of its divisors is an integer number (21083724).

Almost surely, 2^140443855 is an apocalyptic number.

140443855 is a deficient number, since it is larger than the sum of its proper divisors (28225937).

140443855 is a wasteful number, since it uses less digits than its factorization.

140443855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22865.

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

The square root of 140443855 is about 11850.9010205975. The cubic root of 140443855 is about 519.7975728360.

Adding to 140443855 its reverse (558344041), we get a palindrome (698787896).

The spelling of 140443855 in words is "one hundred forty million, four hundred forty-three thousand, eight hundred fifty-five".