11913180 has 24 divisors (see below), whose sum is σ = 33357072. Its totient is φ = 3176832.

The previous prime is 11913179. The next prime is 11913191. The reversal of 11913180 is 8131911.

It is a self number, because there is not a number n which added to its sum of digits gives 11913180.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99217 + ... + 99336.

It is an arithmetic number, because the mean of its divisors is an integer number (1389878).

Almost surely, 2^11913180 is an apocalyptic number.

11913180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11913180 is an abundant number, since it is smaller than the sum of its proper divisors (21443892).

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

11913180 is a wasteful number, since it uses less digits than its factorization.

11913180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198565 (or 198563 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 24.

The square root of 11913180 is about 3451.5474790302. The cubic root of 11913180 is about 228.3893777335.

It can be divided in two parts, 1191 and 3180, that added together give a triangular number (4371 = T₉₃).

The spelling of 11913180 in words is "eleven million, nine hundred thirteen thousand, one hundred eighty".