162112881 has 16 divisors (see below), whose sum is σ = 252775424. Its totient is φ = 90481104.

The previous prime is 162112837. The next prime is 162112889. The reversal of 162112881 is 188211261.

It is a happy number.

162112881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 162112881 - 2¹⁸ = 161850737 is a prime.

It is a super-2 number, since 2×162112881² = 52561172372240322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (162112889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88861 + ... + 90666.

It is an arithmetic number, because the mean of its divisors is an integer number (15798464).

Almost surely, 2^162112881 is an apocalyptic number.

It is an amenable number.

162112881 is a deficient number, since it is larger than the sum of its proper divisors (90662543).

162112881 is a wasteful number, since it uses less digits than its factorization.

162112881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179580.

The product of its digits is 1536, while the sum is 30.

The square root of 162112881 is about 12732.3556736371. The cubic root of 162112881 is about 545.2627647423.

The spelling of 162112881 in words is "one hundred sixty-two million, one hundred twelve thousand, eight hundred eighty-one".