11154140 has 48 divisors (see below), whose sum is σ = 24948000. Its totient is φ = 4177152.

The previous prime is 11154139. The next prime is 11154161. The reversal of 11154140 is 4145111.

11154140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56522 + ... + 56718.

It is an arithmetic number, because the mean of its divisors is an integer number (519750).

Almost surely, 2^11154140 is an apocalyptic number.

11154140 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 11154140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12474000).

11154140 is an abundant number, since it is smaller than the sum of its proper divisors (13793860).

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

11154140 is a wasteful number, since it uses less digits than its factorization.

11154140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 11154140 is about 3339.7814299741. The cubic root of 11154140 is about 223.4319952187.

Adding to 11154140 its reverse (4145111), we get a palindrome (15299251).

The spelling of 11154140 in words is "eleven million, one hundred fifty-four thousand, one hundred forty".