10819021 has 8 divisors (see below), whose sum is σ = 11644344. Its totient is φ = 10014720.

The previous prime is 10819009. The next prime is 10819057. The reversal of 10819021 is 12091801.

10819021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1022121 + 9796900 = 1011^2 + 3130^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 10819021 - 2¹⁵ = 10786253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10818983 and 10819001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10819321) 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, 4180 + ... + 6253.

It is an arithmetic number, because the mean of its divisors is an integer number (1455543).

Almost surely, 2^10819021 is an apocalyptic number.

It is an amenable number.

10819021 is a deficient number, since it is larger than the sum of its proper divisors (825323).

10819021 is a wasteful number, since it uses less digits than its factorization.

10819021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10511.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 10819021 is about 3289.2280249323. The cubic root of 10819021 is about 221.1715804095.

The spelling of 10819021 in words is "ten million, eight hundred nineteen thousand, twenty-one".