81082162 has 12 divisors (see below), whose sum is σ = 141480270. Its totient is φ = 34749456.

The previous prime is 81082147. The next prime is 81082171. The reversal of 81082162 is 26128018.

It can be written as a sum of positive squares in only one way, i.e., 80658361 + 423801 = 8981^2 + 651^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 81082162.

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, 413587 + ... + 413782.

Almost surely, 2^81082162 is an apocalyptic number.

81082162 is a deficient number, since it is larger than the sum of its proper divisors (60398108).

81082162 is a wasteful number, since it uses less digits than its factorization.

81082162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827385 (or 827378 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 81082162 is about 9004.5633986329. The cubic root of 81082162 is about 432.8211156178.

The spelling of 81082162 in words is "eighty-one million, eighty-two thousand, one hundred sixty-two".