140089321 has 2 divisors, whose sum is σ = 140089322. Its totient is φ = 140089320.

The previous prime is 140089303. The next prime is 140089379. The reversal of 140089321 is 123980041.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84437721 + 55651600 = 9189^2 + 7460^2 .

It is a cyclic number.

It is not a de Polignac number, because 140089321 - 2²³ = 131700713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140089321.

It is not a weakly prime, because it can be changed into another prime (140089381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70044660 + 70044661.

It is an arithmetic number, because the mean of its divisors is an integer number (70044661).

Almost surely, 2^140089321 is an apocalyptic number.

It is an amenable number.

140089321 is a deficient number, since it is larger than the sum of its proper divisors (1).

140089321 is an equidigital number, since it uses as much as digits as its factorization.

140089321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 140089321 is about 11835.9334655109. The cubic root of 140089321 is about 519.3598149863.

The spelling of 140089321 in words is "one hundred forty million, eighty-nine thousand, three hundred twenty-one".