11148980 has 12 divisors (see below), whose sum is σ = 23412900. Its totient is φ = 4459584.

The previous prime is 11148967. The next prime is 11148983. The reversal of 11148980 is 8984111.

11148980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5513104 + 5635876 = 2348^2 + 2374^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11148983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278705 + ... + 278744.

It is an arithmetic number, because the mean of its divisors is an integer number (1951075).

Almost surely, 2^11148980 is an apocalyptic number.

11148980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11148980 is an abundant number, since it is smaller than the sum of its proper divisors (12263920).

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

11148980 is a wasteful number, since it uses less digits than its factorization.

11148980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557458 (or 557456 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 11148980 is about 3339.0088349688. The cubic root of 11148980 is about 223.3975360575.

The spelling of 11148980 in words is "eleven million, one hundred forty-eight thousand, nine hundred eighty".