11140521 has 8 divisors (see below), whose sum is σ = 16976064. Its totient is φ = 6366000.

The previous prime is 11140513. The next prime is 11140523. The reversal of 11140521 is 12504111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11140521 - 2³ = 11140513 is a prime.

It is a super-2 number, since 2×11140521² = 248222416302882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11140521.

It is not an unprimeable number, because it can be changed into a prime (11140523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265230 + ... + 265271.

It is an arithmetic number, because the mean of its divisors is an integer number (2122008).

Almost surely, 2^11140521 is an apocalyptic number.

It is an amenable number.

11140521 is a deficient number, since it is larger than the sum of its proper divisors (5835543).

11140521 is an equidigital number, since it uses as much as digits as its factorization.

11140521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530511.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 11140521 is about 3337.7419013459. The cubic root of 11140521 is about 223.3410227297.

Adding to 11140521 its reverse (12504111), we get a palindrome (23644632).

The spelling of 11140521 in words is "eleven million, one hundred forty thousand, five hundred twenty-one".