1052921 has 8 divisors (see below), whose sum is σ = 1098888. Its totient is φ = 1008000.

The previous prime is 1052899. The next prime is 1052939. The reversal of 1052921 is 1292501.

It can be written as a sum of positive squares in 4 ways, for example, as 287296 + 765625 = 536^2 + 875^2 .

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 1052921 - 2¹⁴ = 1036537 is a prime.

It is a super-2 number, since 2×1052921² = 2217285264482, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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 = 1052893 and 1052902.

It is not an unprimeable number, because it can be changed into a prime (1052971) 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, 2291 + ... + 2711.

It is an arithmetic number, because the mean of its divisors is an integer number (137361).

2^1052921 is an apocalyptic number.

It is an amenable number.

1052921 is a deficient number, since it is larger than the sum of its proper divisors (45967).

1052921 is an equidigital number, since it uses as much as digits as its factorization.

1052921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1052921 is about 1026.1193887653. The cubic root of 1052921 is about 101.7337990131.

The spelling of 1052921 in words is "one million, fifty-two thousand, nine hundred twenty-one".