141185609 has 2 divisors, whose sum is σ = 141185610. Its totient is φ = 141185608.

The previous prime is 141185593. The next prime is 141185647. The reversal of 141185609 is 906581141.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139169209 + 2016400 = 11797^2 + 1420^2 .

It is a cyclic number.

It is not a de Polignac number, because 141185609 - 2⁴ = 141185593 is a prime.

It is not a weakly prime, because it can be changed into another prime (141185669) 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, 70592804 + 70592805.

It is an arithmetic number, because the mean of its divisors is an integer number (70592805).

Almost surely, 2^141185609 is an apocalyptic number.

It is an amenable number.

141185609 is a deficient number, since it is larger than the sum of its proper divisors (1).

141185609 is an equidigital number, since it uses as much as digits as its factorization.

141185609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 141185609 is about 11882.1550654753. The cubic root of 141185609 is about 520.7110698628.

The spelling of 141185609 in words is "one hundred forty-one million, one hundred eighty-five thousand, six hundred nine".