11150081 has 4 divisors (see below), whose sum is σ = 11190612. Its totient is φ = 11109552.

The previous prime is 11150077. The next prime is 11150099. The reversal of 11150081 is 18005111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18005111 = 67 ⋅268733.

It can be written as a sum of positive squares in 2 ways, for example, as 5837056 + 5313025 = 2416^2 + 2305^2 .

It is a cyclic number.

It is not a de Polignac number, because 11150081 - 2² = 11150077 is a prime.

It is a super-2 number, since 2×11150081² = 248648612613122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11150021) 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, 19850 + ... + 20403.

It is an arithmetic number, because the mean of its divisors is an integer number (2797653).

Almost surely, 2^11150081 is an apocalyptic number.

It is an amenable number.

11150081 is a deficient number, since it is larger than the sum of its proper divisors (40531).

11150081 is an equidigital number, since it uses as much as digits as its factorization.

11150081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40530.

The product of its (nonzero) digits is 40, while the sum is 17.

The square root of 11150081 is about 3339.1737001839. The cubic root of 11150081 is about 223.4048895730.

Adding to 11150081 its reverse (18005111), we get a palindrome (29155192).

The spelling of 11150081 in words is "eleven million, one hundred fifty thousand, eighty-one".