11195213 has 2 divisors, whose sum is σ = 11195214. Its totient is φ = 11195212.

The previous prime is 11195159. The next prime is 11195251. The reversal of 11195213 is 31259111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6538249 + 4656964 = 2557^2 + 2158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11195213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11195263) 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 as a sum of consecutive naturals, namely, 5597606 + 5597607.

It is an arithmetic number, because the mean of its divisors is an integer number (5597607).

Almost surely, 2^11195213 is an apocalyptic number.

It is an amenable number.

11195213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11195213 is an equidigital number, since it uses as much as digits as its factorization.

11195213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270, while the sum is 23.

The square root of 11195213 is about 3345.9248347804. The cubic root of 11195213 is about 223.7059078978.

The spelling of 11195213 in words is "eleven million, one hundred ninety-five thousand, two hundred thirteen".