140823329 has 2 divisors, whose sum is σ = 140823330. Its totient is φ = 140823328.

The previous prime is 140823311. The next prime is 140823337. The reversal of 140823329 is 923328041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73960000 + 66863329 = 8600^2 + 8177^2 .

It is an emirp because it is prime and its reverse (923328041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140823329 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 140823295 and 140823304.

It is not a weakly prime, because it can be changed into another prime (140823379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70411664 + 70411665.

It is an arithmetic number, because the mean of its divisors is an integer number (70411665).

Almost surely, 2^140823329 is an apocalyptic number.

It is an amenable number.

140823329 is a deficient number, since it is larger than the sum of its proper divisors (1).

140823329 is an equidigital number, since it uses as much as digits as its factorization.

140823329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 140823329 is about 11866.9005641743. The cubic root of 140823329 is about 520.2653096329.

The spelling of 140823329 in words is "one hundred forty million, eight hundred twenty-three thousand, three hundred twenty-nine".