16112881 has 4 divisors (see below), whose sum is σ = 16129264. Its totient is φ = 16096500.

The previous prime is 16112867. The next prime is 16112891. The reversal of 16112881 is 18821161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16112881 - 2¹³ = 16104689 is a prime.

It is a super-2 number, since 2×16112881² = 519249868240322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16112851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6615 + ... + 8716.

It is an arithmetic number, because the mean of its divisors is an integer number (4032316).

Almost surely, 2^16112881 is an apocalyptic number.

It is an amenable number.

16112881 is a deficient number, since it is larger than the sum of its proper divisors (16383).

16112881 is a wasteful number, since it uses less digits than its factorization.

16112881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16382.

The product of its digits is 768, while the sum is 28.

The square root of 16112881 is about 4014.0853254509. The cubic root of 16112881 is about 252.5754099503.

The spelling of 16112881 in words is "sixteen million, one hundred twelve thousand, eight hundred eighty-one".