11803158 has 20 divisors (see below), whose sum is σ = 26448180. Its totient is φ = 3934332.

The previous prime is 11803133. The next prime is 11803159. The reversal of 11803158 is 85130811.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11803159) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 36268 + ... + 36591.

It is an arithmetic number, because the mean of its divisors is an integer number (1322409).

Almost surely, 2^11803158 is an apocalyptic number.

11803158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11803158 is an abundant number, since it is smaller than the sum of its proper divisors (14645022).

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

11803158 is an equidigital number, since it uses as much as digits as its factorization.

11803158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72873 (or 72864 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 11803158 is about 3435.5724413844. The cubic root of 11803158 is about 227.6841193547.

Adding to 11803158 its reverse (85130811), we get a palindrome (96933969).

The spelling of 11803158 in words is "eleven million, eight hundred three thousand, one hundred fifty-eight".