11219591 has 2 divisors, whose sum is σ = 11219592. Its totient is φ = 11219590.

The previous prime is 11219587. The next prime is 11219599. The reversal of 11219591 is 19591211.

11219591 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 11219591 - 2² = 11219587 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11219599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5609795 + 5609796.

It is an arithmetic number, because the mean of its divisors is an integer number (5609796).

Almost surely, 2^11219591 is an apocalyptic number.

11219591 is a deficient number, since it is larger than the sum of its proper divisors (1).

11219591 is an equidigital number, since it uses as much as digits as its factorization.

11219591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 810, while the sum is 29.

The square root of 11219591 is about 3349.5657927558. The cubic root of 11219591 is about 223.8681662072.

The spelling of 11219591 in words is "eleven million, two hundred nineteen thousand, five hundred ninety-one".