10104921 has 12 divisors (see below), whose sum is σ = 14635348. Its totient is φ = 6718464.

The previous prime is 10104917. The next prime is 10104929. The reversal of 10104921 is 12940101.

It can be written as a sum of positive squares in 2 ways, for example, as 3370896 + 6734025 = 1836^2 + 2595^2 .

It is not a de Polignac number, because 10104921 - 2² = 10104917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10104894 and 10104903.

It is not an unprimeable number, because it can be changed into a prime (10104929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2601 + ... + 5193.

Almost surely, 2^10104921 is an apocalyptic number.

It is an amenable number.

10104921 is a deficient number, since it is larger than the sum of its proper divisors (4530427).

10104921 is a wasteful number, since it uses less digits than its factorization.

10104921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3032 (or 3029 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 10104921 is about 3178.8238390952. The cubic root of 10104921 is about 216.1943338515.

It can be divided in two parts, 10104 and 921, that added together give a square (11025 = 105²).

The spelling of 10104921 in words is "ten million, one hundred four thousand, nine hundred twenty-one".