140822789 has 2 divisors, whose sum is σ = 140822790. Its totient is φ = 140822788.

The previous prime is 140822783. The next prime is 140822809. The reversal of 140822789 is 987228041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91049764 + 49773025 = 9542^2 + 7055^2 .

It is a cyclic number.

It is not a de Polignac number, because 140822789 - 2⁸ = 140822533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140822783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70411394 + 70411395.

It is an arithmetic number, because the mean of its divisors is an integer number (70411395).

Almost surely, 2^140822789 is an apocalyptic number.

It is an amenable number.

140822789 is a deficient number, since it is larger than the sum of its proper divisors (1).

140822789 is an equidigital number, since it uses as much as digits as its factorization.

140822789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 140822789 is about 11866.8778117919. The cubic root of 140822789 is about 520.2646446303.

The spelling of 140822789 in words is "one hundred forty million, eight hundred twenty-two thousand, seven hundred eighty-nine".