11445671 has 2 divisors, whose sum is σ = 11445672. Its totient is φ = 11445670.

The previous prime is 11445661. The next prime is 11445673. The reversal of 11445671 is 17654411.

It is a strong prime.

It is an emirp because it is prime and its reverse (17654411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11445671 is a prime.

It is a Sophie Germain prime.

Together with 11445673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11445673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5722835 + 5722836.

It is an arithmetic number, because the mean of its divisors is an integer number (5722836).

Almost surely, 2^11445671 is an apocalyptic number.

11445671 is a deficient number, since it is larger than the sum of its proper divisors (1).

11445671 is an equidigital number, since it uses as much as digits as its factorization.

11445671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 29.

The square root of 11445671 is about 3383.1451343388. The cubic root of 11445671 is about 225.3618605173.

The spelling of 11445671 in words is "eleven million, four hundred forty-five thousand, six hundred seventy-one".