11451140 has 24 divisors (see below), whose sum is σ = 24276672. Its totient is φ = 4536800.

The previous prime is 11451137. The next prime is 11451157. The reversal of 11451140 is 4115411.

11451140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11451140² = 262257214599200, which contains 22 as substring.

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, 536 + ... + 4815.

It is an arithmetic number, because the mean of its divisors is an integer number (1011528).

Almost surely, 2^11451140 is an apocalyptic number.

11451140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11451140 is an abundant number, since it is smaller than the sum of its proper divisors (12825532).

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

11451140 is a wasteful number, since it uses less digits than its factorization.

11451140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5467 (or 5465 counting only the distinct ones).

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

The square root of 11451140 is about 3383.9533093706. The cubic root of 11451140 is about 225.3977491300.

Adding to 11451140 its reverse (4115411), we get a palindrome (15566551).

The spelling of 11451140 in words is "eleven million, four hundred fifty-one thousand, one hundred forty".