161282834 has 4 divisors (see below), whose sum is σ = 241924254. Its totient is φ = 80641416.

The previous prime is 161282777. The next prime is 161282837. The reversal of 161282834 is 438282161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 438282161 = 191 ⋅2294671.

It can be written as a sum of positive squares in only one way, i.e., 124255609 + 37027225 = 11147^2 + 6085^2 .

It is a junction number, because it is equal to n+sod(n) for n = 161282794 and 161282803.

It is not an unprimeable number, because it can be changed into a prime (161282837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40320707 + ... + 40320710.

Almost surely, 2^161282834 is an apocalyptic number.

161282834 is a deficient number, since it is larger than the sum of its proper divisors (80641420).

161282834 is an equidigital number, since it uses as much as digits as its factorization.

161282834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80641419.

The product of its digits is 18432, while the sum is 35.

The square root of 161282834 is about 12699.7178708820. The cubic root of 161282834 is about 544.3305575508.

The spelling of 161282834 in words is "one hundred sixty-one million, two hundred eighty-two thousand, eight hundred thirty-four".