10126821 has 8 divisors (see below), whose sum is σ = 13526784. Its totient is φ = 6739040.

The previous prime is 10126813. The next prime is 10126847. The reversal of 10126821 is 12862101.

10126821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10126821 - 2³ = 10126813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10126861) 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, 885 + ... + 4586.

It is an arithmetic number, because the mean of its divisors is an integer number (1690848).

Almost surely, 2^10126821 is an apocalyptic number.

It is an amenable number.

10126821 is a deficient number, since it is larger than the sum of its proper divisors (3399963).

10126821 is an equidigital number, since it uses as much as digits as its factorization.

10126821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6091.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 10126821 is about 3182.2666450189. The cubic root of 10126821 is about 216.3504043315.

Adding to 10126821 its reverse (12862101), we get a palindrome (22988922).

The spelling of 10126821 in words is "ten million, one hundred twenty-six thousand, eight hundred twenty-one".