11145391 has 2 divisors, whose sum is σ = 11145392. Its totient is φ = 11145390.

The previous prime is 11145377. The next prime is 11145401. The reversal of 11145391 is 19354111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11145391 - 2⁷ = 11145263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11145331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5572695 + 5572696.

It is an arithmetic number, because the mean of its divisors is an integer number (5572696).

Almost surely, 2^11145391 is an apocalyptic number.

11145391 is a deficient number, since it is larger than the sum of its proper divisors (1).

11145391 is an equidigital number, since it uses as much as digits as its factorization.

11145391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 25.

The square root of 11145391 is about 3338.4713567739. The cubic root of 11145391 is about 223.3735619718.

The spelling of 11145391 in words is "eleven million, one hundred forty-five thousand, three hundred ninety-one".