11636142 has 16 divisors (see below), whose sum is σ = 26596992. Its totient is φ = 3324600.

The previous prime is 11636117. The next prime is 11636159. The reversal of 11636142 is 24163611.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 138484 + ... + 138567.

It is an arithmetic number, because the mean of its divisors is an integer number (1662312).

Almost surely, 2^11636142 is an apocalyptic number.

11636142 is an abundant number, since it is smaller than the sum of its proper divisors (14960850).

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

11636142 is a wasteful number, since it uses less digits than its factorization.

11636142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277063.

The product of its digits is 864, while the sum is 24.

The square root of 11636142 is about 3411.1789750759. The cubic root of 11636142 is about 226.6050952525.

Adding to 11636142 its reverse (24163611), we get a palindrome (35799753).

It can be divided in two parts, 116361 and 42, that added together give a triangular number (116403 = T₄₈₂).

The spelling of 11636142 in words is "eleven million, six hundred thirty-six thousand, one hundred forty-two".