11909106 has 80 divisors (see below), whose sum is σ = 30004128. Its totient is φ = 3499200.

The previous prime is 11909099. The next prime is 11909113. The reversal of 11909106 is 60190911.

It is an interprime number because it is at equal distance from previous prime (11909099) and next prime (11909113).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11909106.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 72981 + ... + 73143.

Almost surely, 2^11909106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11909106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15002064).

11909106 is an abundant number, since it is smaller than the sum of its proper divisors (18095022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11909106 is a wasteful number, since it uses less digits than its factorization.

11909106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 11909106 is about 3450.9572585009. The cubic root of 11909106 is about 228.3633403416.

It can be divided in two parts, 1190 and 9106, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 11909106 in words is "eleven million, nine hundred nine thousand, one hundred six".