140822689 has 4 divisors (see below), whose sum is σ = 160940224. Its totient is φ = 120705156.

The previous prime is 140822687. The next prime is 140822729. The reversal of 140822689 is 986228041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140822689 - 2¹ = 140822687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140822681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10058757 + ... + 10058770.

It is an arithmetic number, because the mean of its divisors is an integer number (40235056).

Almost surely, 2^140822689 is an apocalyptic number.

It is an amenable number.

140822689 is a deficient number, since it is larger than the sum of its proper divisors (20117535).

140822689 is an equidigital number, since it uses as much as digits as its factorization.

140822689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20117534.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 140822689 is about 11866.8735983830. The cubic root of 140822689 is about 520.2645214815.

The spelling of 140822689 in words is "one hundred forty million, eight hundred twenty-two thousand, six hundred eighty-nine".