11745811 has 16 divisors (see below), whose sum is σ = 14796288. Its totient is φ = 9057600.

The previous prime is 11745809. The next prime is 11745821. The reversal of 11745811 is 11854711.

11745811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11745811 - 2¹ = 11745809 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 11745811.

It is not an unprimeable number, because it can be changed into a prime (11745821) 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, 7191 + ... + 8671.

It is an arithmetic number, because the mean of its divisors is an integer number (924768).

Almost surely, 2^11745811 is an apocalyptic number.

11745811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11745811 is a deficient number, since it is larger than the sum of its proper divisors (3050477).

11745811 is a wasteful number, since it uses less digits than its factorization.

11745811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602.

The product of its digits is 1120, while the sum is 28.

The square root of 11745811 is about 3427.2162172819. The cubic root of 11745811 is about 227.3147773879.

Subtracting 11745811 from its reverse (11854711), we obtain a square (108900 = 330²).

The spelling of 11745811 in words is "eleven million, seven hundred forty-five thousand, eight hundred eleven".