11355691 has 2 divisors, whose sum is σ = 11355692. Its totient is φ = 11355690.

The previous prime is 11355689. The next prime is 11355731. The reversal of 11355691 is 19655311.

11355691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11355691 - 2¹ = 11355689 is a prime.

Together with 11355689, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11355611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5677845 + 5677846.

It is an arithmetic number, because the mean of its divisors is an integer number (5677846).

Almost surely, 2^11355691 is an apocalyptic number.

11355691 is a deficient number, since it is larger than the sum of its proper divisors (1).

11355691 is an equidigital number, since it uses as much as digits as its factorization.

11355691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4050, while the sum is 31.

The square root of 11355691 is about 3369.8206183713. The cubic root of 11355691 is about 224.7697463434.

The spelling of 11355691 in words is "eleven million, three hundred fifty-five thousand, six hundred ninety-one".