11259905 has 4 divisors (see below), whose sum is σ = 13511892. Its totient is φ = 9007920.

The previous prime is 11259901. The next prime is 11259907. The reversal of 11259905 is 50995211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7907344 + 3352561 = 2812^2 + 1831^2 .

It is not a de Polignac number, because 11259905 - 2² = 11259901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11259901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1125986 + ... + 1125995.

It is an arithmetic number, because the mean of its divisors is an integer number (3377973).

It is a Proth number, since it is equal to 2749 ⋅ 2¹² + 1 and 2749 < 2¹².

Almost surely, 2^11259905 is an apocalyptic number.

It is an amenable number.

11259905 is a deficient number, since it is larger than the sum of its proper divisors (2251987).

11259905 is an equidigital number, since it uses as much as digits as its factorization.

11259905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251986.

The product of its (nonzero) digits is 4050, while the sum is 32.

The square root of 11259905 is about 3355.5781916087. The cubic root of 11259905 is about 224.1359785030.

The spelling of 11259905 in words is "eleven million, two hundred fifty-nine thousand, nine hundred five".