1053321 has 8 divisors (see below), whose sum is σ = 1409280. Its totient is φ = 699792.

The previous prime is 1053319. The next prime is 1053347. The reversal of 1053321 is 1233501.

It is a happy number.

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

It is not a de Polignac number, because 1053321 - 2¹ = 1053319 is a prime.

It is a super-2 number, since 2×1053321² = 2218970258082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1053321.

It is not an unprimeable number, because it can be changed into a prime (1053301) 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, 1071 + ... + 1803.

It is an arithmetic number, because the mean of its divisors is an integer number (176160).

2^1053321 is an apocalyptic number.

It is an amenable number.

1053321 is a deficient number, since it is larger than the sum of its proper divisors (355959).

1053321 is an equidigital number, since it uses as much as digits as its factorization.

1053321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1053321 is about 1026.3142793511. The cubic root of 1053321 is about 101.7466801212.

Adding to 1053321 its reverse (1233501), we get a palindrome (2286822).

The spelling of 1053321 in words is "one million, fifty-three thousand, three hundred twenty-one".