161050349 has 2 divisors, whose sum is σ = 161050350. Its totient is φ = 161050348.

The previous prime is 161050343. The next prime is 161050399. The reversal of 161050349 is 943050161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131836324 + 29214025 = 11482^2 + 5405^2 .

It is a cyclic number.

It is not a de Polignac number, because 161050349 - 2²⁴ = 144273133 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161050343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80525174 + 80525175.

It is an arithmetic number, because the mean of its divisors is an integer number (80525175).

Almost surely, 2^161050349 is an apocalyptic number.

It is an amenable number.

161050349 is a deficient number, since it is larger than the sum of its proper divisors (1).

161050349 is an equidigital number, since it uses as much as digits as its factorization.

161050349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 161050349 is about 12690.5614139013. The cubic root of 161050349 is about 544.0688856774.

The spelling of 161050349 in words is "one hundred sixty-one million, fifty thousand, three hundred forty-nine".