11145900 has 72 divisors (see below), whose sum is σ = 32904144. Its totient is φ = 2912000.

The previous prime is 11145899. The next prime is 11145907. The reversal of 11145900 is 954111.

It is not an unprimeable number, because it can be changed into a prime (11145907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15550 + ... + 16250.

It is an arithmetic number, because the mean of its divisors is an integer number (457002).

Almost surely, 2^11145900 is an apocalyptic number.

11145900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11145900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16452072).

11145900 is an abundant number, since it is smaller than the sum of its proper divisors (21758244).

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

11145900 is a wasteful number, since it uses less digits than its factorization.

11145900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 11145900 is about 3338.5475883983. The cubic root of 11145900 is about 223.3769623434.

The spelling of 11145900 in words is "eleven million, one hundred forty-five thousand, nine hundred".