10821149 has 4 divisors (see below), whose sum is σ = 10843680. Its totient is φ = 10798620.

The previous prime is 10821143. The next prime is 10821179. The reversal of 10821149 is 94112801.

10821149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10821149 - 2⁴ = 10821133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10821143) 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, 10529 + ... + 11510.

It is an arithmetic number, because the mean of its divisors is an integer number (2710920).

Almost surely, 2^10821149 is an apocalyptic number.

It is an amenable number.

10821149 is a deficient number, since it is larger than the sum of its proper divisors (22531).

10821149 is an equidigital number, since it uses as much as digits as its factorization.

10821149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22530.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 10821149 is about 3289.5514891851. The cubic root of 10821149 is about 221.1860802510.

The spelling of 10821149 in words is "ten million, eight hundred twenty-one thousand, one hundred forty-nine".