161296834 has 4 divisors (see below), whose sum is σ = 241945254. Its totient is φ = 80648416.

The previous prime is 161296819. The next prime is 161296847. The reversal of 161296834 is 438692161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 151216209 + 10080625 = 12297^2 + 3175^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 40324207 + ... + 40324210.

Almost surely, 2^161296834 is an apocalyptic number.

161296834 is a deficient number, since it is larger than the sum of its proper divisors (80648420).

161296834 is an equidigital number, since it uses as much as digits as its factorization.

161296834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80648419.

The product of its digits is 62208, while the sum is 40.

The square root of 161296834 is about 12700.2690522681. The cubic root of 161296834 is about 544.3463071238.

The spelling of 161296834 in words is "one hundred sixty-one million, two hundred ninety-six thousand, eight hundred thirty-four".