182216138 has 12 divisors (see below), whose sum is σ = 295966998. Its totient is φ = 84099600.

The previous prime is 182216119. The next prime is 182216179. The reversal of 182216138 is 831612281.

It can be written as a sum of positive squares in 3 ways, for example, as 99460729 + 82755409 = 9973^2 + 9097^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 269213 + ... + 269888.

Almost surely, 2^182216138 is an apocalyptic number.

182216138 is a deficient number, since it is larger than the sum of its proper divisors (113750860).

182216138 is a wasteful number, since it uses less digits than its factorization.

182216138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539129 (or 539116 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 182216138 is about 13498.7457935913. The cubic root of 182216138 is about 566.9293563299.

The spelling of 182216138 in words is "one hundred eighty-two million, two hundred sixteen thousand, one hundred thirty-eight".