11259991 has 2 divisors, whose sum is σ = 11259992. Its totient is φ = 11259990.

The previous prime is 11259977. The next prime is 11260003. The reversal of 11259991 is 19995211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11259991 - 2⁵ = 11259959 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11259991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11259901) 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, 5629995 + 5629996.

It is an arithmetic number, because the mean of its divisors is an integer number (5629996).

Almost surely, 2^11259991 is an apocalyptic number.

11259991 is a deficient number, since it is larger than the sum of its proper divisors (1).

11259991 is an equidigital number, since it uses as much as digits as its factorization.

11259991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7290, while the sum is 37.

The square root of 11259991 is about 3355.5910060673. The cubic root of 11259991 is about 224.1365491308.

The spelling of 11259991 in words is "eleven million, two hundred fifty-nine thousand, nine hundred ninety-one".