161848211 has 8 divisors (see below), whose sum is σ = 195850080. Its totient is φ = 130566528.

The previous prime is 161848207. The next prime is 161848223. The reversal of 161848211 is 112848161.

It is a happy number.

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

It is not a de Polignac number, because 161848211 - 2² = 161848207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161848201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679916 + ... + 680153.

It is an arithmetic number, because the mean of its divisors is an integer number (24481260).

Almost surely, 2^161848211 is an apocalyptic number.

161848211 is a deficient number, since it is larger than the sum of its proper divisors (34001869).

161848211 is a wasteful number, since it uses less digits than its factorization.

161848211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360093.

The product of its digits is 3072, while the sum is 32.

The square root of 161848211 is about 12721.9578288878. The cubic root of 161848211 is about 544.9658660551.

Subtracting from 161848211 its reverse (112848161), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 161848211 in words is "one hundred sixty-one million, eight hundred forty-eight thousand, two hundred eleven".