140607169 has 2 divisors, whose sum is σ = 140607170. Its totient is φ = 140607168.

The previous prime is 140607151. The next prime is 140607191. The reversal of 140607169 is 961706041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129960000 + 10647169 = 11400^2 + 3263^2 .

It is a cyclic number.

It is not a de Polignac number, because 140607169 - 2²¹ = 138510017 is a prime.

It is a super-2 number, since 2×140607169² = 39540751948389122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140607149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70303584 + 70303585.

It is an arithmetic number, because the mean of its divisors is an integer number (70303585).

Almost surely, 2^140607169 is an apocalyptic number.

It is an amenable number.

140607169 is a deficient number, since it is larger than the sum of its proper divisors (1).

140607169 is an equidigital number, since it uses as much as digits as its factorization.

140607169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 140607169 is about 11857.7893808247. The cubic root of 140607169 is about 519.9989755897.

The spelling of 140607169 in words is "one hundred forty million, six hundred seven thousand, one hundred sixty-nine".