11861119 has 4 divisors (see below), whose sum is σ = 11994480. Its totient is φ = 11727760.

The previous prime is 11861107. The next prime is 11861131. The reversal of 11861119 is 91116811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91116811 = 29 ⋅3141959.

It is an interprime number because it is at equal distance from previous prime (11861107) and next prime (11861131).

It is a cyclic number.

It is not a de Polignac number, because 11861119 - 2¹⁵ = 11828351 is a prime.

It is a super-2 number, since 2×11861119² = 281372287864322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11861159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66547 + ... + 66724.

It is an arithmetic number, because the mean of its divisors is an integer number (2998620).

Almost surely, 2^11861119 is an apocalyptic number.

11861119 is a deficient number, since it is larger than the sum of its proper divisors (133361).

11861119 is an equidigital number, since it uses as much as digits as its factorization.

11861119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133360.

The product of its digits is 432, while the sum is 28.

The square root of 11861119 is about 3443.9975319387. The cubic root of 11861119 is about 228.0562021602.

The spelling of 11861119 in words is "eleven million, eight hundred sixty-one thousand, one hundred nineteen".