140569673 has 2 divisors, whose sum is σ = 140569674. Its totient is φ = 140569672.

The previous prime is 140569669. The next prime is 140569687. The reversal of 140569673 is 376965041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80227849 + 60341824 = 8957^2 + 7768^2 .

It is a cyclic number.

It is not a de Polignac number, because 140569673 - 2² = 140569669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140569673.

It is not a weakly prime, because it can be changed into another prime (140569613) 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, 70284836 + 70284837.

It is an arithmetic number, because the mean of its divisors is an integer number (70284837).

Almost surely, 2^140569673 is an apocalyptic number.

It is an amenable number.

140569673 is a deficient number, since it is larger than the sum of its proper divisors (1).

140569673 is an equidigital number, since it uses as much as digits as its factorization.

140569673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 140569673 is about 11856.2082049870. The cubic root of 140569673 is about 519.9527484185.

The spelling of 140569673 in words is "one hundred forty million, five hundred sixty-nine thousand, six hundred seventy-three".