11711345 has 4 divisors (see below), whose sum is σ = 14053620. Its totient is φ = 9369072.

The previous prime is 11711341. The next prime is 11711377. The reversal of 11711345 is 54311711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9138529 + 2572816 = 3023^2 + 1604^2 .

It is a cyclic number.

It is not a de Polignac number, because 11711345 - 2² = 11711341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11711345.

It is not an unprimeable number, because it can be changed into a prime (11711341) 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, 1171130 + ... + 1171139.

It is an arithmetic number, because the mean of its divisors is an integer number (3513405).

Almost surely, 2^11711345 is an apocalyptic number.

It is an amenable number.

11711345 is a deficient number, since it is larger than the sum of its proper divisors (2342275).

11711345 is an equidigital number, since it uses as much as digits as its factorization.

11711345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342274.

The product of its digits is 420, while the sum is 23.

The square root of 11711345 is about 3422.1842440173. The cubic root of 11711345 is about 227.0922212571.

The spelling of 11711345 in words is "eleven million, seven hundred eleven thousand, three hundred forty-five".