161050849 has 8 divisors (see below), whose sum is σ = 162549288. Its totient is φ = 159559680.

The previous prime is 161050837. The next prime is 161050861. The reversal of 161050849 is 948050161.

It is an interprime number because it is at equal distance from previous prime (161050837) and next prime (161050861).

It can be written as a sum of positive squares in 4 ways, for example, as 81270225 + 79780624 = 9015^2 + 8932^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161050849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161050889) 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 in 7 ways as a sum of consecutive naturals, for example, 49039 + ... + 52219.

It is an arithmetic number, because the mean of its divisors is an integer number (20318661).

Almost surely, 2^161050849 is an apocalyptic number.

It is an amenable number.

161050849 is a deficient number, since it is larger than the sum of its proper divisors (1498439).

161050849 is a wasteful number, since it uses less digits than its factorization.

161050849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 161050849 is about 12690.5811135661. The cubic root of 161050849 is about 544.0694487190.

The spelling of 161050849 in words is "one hundred sixty-one million, fifty thousand, eight hundred forty-nine".