161122882 has 8 divisors (see below), whose sum is σ = 241761996. Its totient is φ = 80535552.

The previous prime is 161122879. The next prime is 161122883. The reversal of 161122882 is 288221161.

It can be written as a sum of positive squares in 2 ways, for example, as 90041121 + 71081761 = 9489^2 + 8431^2 .

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

It is not an unprimeable number, because it can be changed into a prime (161122883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3903 + ... + 18370.

Almost surely, 2^161122882 is an apocalyptic number.

161122882 is a deficient number, since it is larger than the sum of its proper divisors (80639114).

161122882 is a wasteful number, since it uses less digits than its factorization.

161122882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25892.

The product of its digits is 3072, while the sum is 31.

The square root of 161122882 is about 12693.4188460005. The cubic root of 161122882 is about 544.1505517026.

The spelling of 161122882 in words is "one hundred sixty-one million, one hundred twenty-two thousand, eight hundred eighty-two".