1916011 has 4 divisors (see below), whose sum is σ = 1918800. Its totient is φ = 1913224.

The previous prime is 1915997. The next prime is 1916021. The reversal of 1916011 is 1106191.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1106191 = 59 ⋅18749.

It is a cyclic number.

It is not a de Polignac number, because 1916011 - 2⁹ = 1915499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1916011.

It is not an unprimeable number, because it can be changed into a prime (1916021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450 + ... + 2008.

It is an arithmetic number, because the mean of its divisors is an integer number (479700).

2^1916011 is an apocalyptic number.

1916011 is a deficient number, since it is larger than the sum of its proper divisors (2789).

1916011 is a wasteful number, since it uses less digits than its factorization.

1916011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 1916011 is about 1384.2004912584. The cubic root of 1916011 is about 124.2031659036.

The spelling of 1916011 in words is "one million, nine hundred sixteen thousand, eleven".