11890126 has 16 divisors (see below), whose sum is σ = 18965664. Its totient is φ = 5578144.

The previous prime is 11890091. The next prime is 11890127. The reversal of 11890126 is 62109811.

It is a happy number.

11890126 is a nontrivial binomial coefficient, being equal to C(4877, 2).

It is a junction number, because it is equal to n+sod(n) for n = 11890094 and 11890103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11890127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 4876.

It is an arithmetic number, because the mean of its divisors is an integer number (1185354).

Almost surely, 2^11890126 is an apocalyptic number.

11890126 is the 4876-th triangular number.

11890126 is the 1626-th centered nonagonal number.

11890126 is a deficient number, since it is larger than the sum of its proper divisors (7075538).

11890126 is a wasteful number, since it uses less digits than its factorization.

11890126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4955.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 11890126 is about 3448.2062003308. The cubic root of 11890126 is about 228.2419586907.

Adding to 11890126 its reverse (62109811), we get a palindrome (73999937).

The spelling of 11890126 in words is "eleven million, eight hundred ninety thousand, one hundred twenty-six".