16811041 has 4 divisors (see below), whose sum is σ = 18104212. Its totient is φ = 15517872.

The previous prime is 16811033. The next prime is 16811059. The reversal of 16811041 is 14011861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14011861 = 827 ⋅16943.

It can be written as a sum of positive squares in 2 ways, for example, as 9363600 + 7447441 = 3060^2 + 2729^2 .

It is a cyclic number.

It is not a de Polignac number, because 16811041 - 2³ = 16811033 is a prime.

It is a super-2 number, since 2×16811041² = 565222199007362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16811071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646566 + ... + 646591.

It is an arithmetic number, because the mean of its divisors is an integer number (4526053).

Almost surely, 2^16811041 is an apocalyptic number.

It is an amenable number.

16811041 is a deficient number, since it is larger than the sum of its proper divisors (1293171).

16811041 is a wasteful number, since it uses less digits than its factorization.

16811041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293170.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 16811041 is about 4100.1269492541. The cubic root of 16811041 is about 256.1719273559.

The spelling of 16811041 in words is "sixteen million, eight hundred eleven thousand, forty-one".