140823289 has 8 divisors (see below), whose sum is σ = 141812000. Its totient is φ = 139838400.

The previous prime is 140823281. The next prime is 140823301. The reversal of 140823289 is 982328041.

140823289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 140823289 - 2³ = 140823281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140823281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119674 + ... + 120844.

It is an arithmetic number, because the mean of its divisors is an integer number (17726500).

Almost surely, 2^140823289 is an apocalyptic number.

It is an amenable number.

140823289 is a deficient number, since it is larger than the sum of its proper divisors (988711).

140823289 is a wasteful number, since it uses less digits than its factorization.

140823289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 140823289 is about 11866.8988788141. The cubic root of 140823289 is about 520.2652603735.

It can be divided in two parts, 14082 and 3289, that added together give a palindrome (17371).

The spelling of 140823289 in words is "one hundred forty million, eight hundred twenty-three thousand, two hundred eighty-nine".