11150921 has 4 divisors (see below), whose sum is σ = 11200272. Its totient is φ = 11101572.

The previous prime is 11150911. The next prime is 11150927. The reversal of 11150921 is 12905111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11150921 - 2¹⁴ = 11134537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11150893 and 11150902.

It is not an unprimeable number, because it can be changed into a prime (11150927) 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, 24335 + ... + 24788.

It is an arithmetic number, because the mean of its divisors is an integer number (2800068).

Almost surely, 2^11150921 is an apocalyptic number.

It is an amenable number.

11150921 is a deficient number, since it is larger than the sum of its proper divisors (49351).

11150921 is an equidigital number, since it uses as much as digits as its factorization.

11150921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49350.

The product of its (nonzero) digits is 90, while the sum is 20.

The square root of 11150921 is about 3339.2994774353. The cubic root of 11150921 is about 223.4104995590.

The spelling of 11150921 in words is "eleven million, one hundred fifty thousand, nine hundred twenty-one".