11445667 has 4 divisors (see below), whose sum is σ = 11574360. Its totient is φ = 11316976.

The previous prime is 11445661. The next prime is 11445671. The reversal of 11445667 is 76654411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11445667 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11445661) 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, 64213 + ... + 64390.

It is an arithmetic number, because the mean of its divisors is an integer number (2893590).

Almost surely, 2^11445667 is an apocalyptic number.

11445667 is a deficient number, since it is larger than the sum of its proper divisors (128693).

11445667 is an equidigital number, since it uses as much as digits as its factorization.

11445667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128692.

The product of its digits is 20160, while the sum is 34.

The square root of 11445667 is about 3383.1445431728. The cubic root of 11445667 is about 225.3618342644.

The spelling of 11445667 in words is "eleven million, four hundred forty-five thousand, six hundred sixty-seven".