1053821215 has 4 divisors (see below), whose sum is σ = 1264585464. Its totient is φ = 843056968.

The previous prime is 1053821213. The next prime is 1053821221. The reversal of 1053821215 is 5121283501.

1053821215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5121283501 = 619 ⋅8273479.

It is a cyclic number.

It is not a de Polignac number, because 1053821215 - 2¹ = 1053821213 is a prime.

It is a super-2 number, since 2×1053821215² = 2221078306368152450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053821213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105382117 + ... + 105382126.

It is an arithmetic number, because the mean of its divisors is an integer number (316146366).

Almost surely, 2^1053821215 is an apocalyptic number.

1053821215 is a deficient number, since it is larger than the sum of its proper divisors (210764249).

1053821215 is an equidigital number, since it uses as much as digits as its factorization.

1053821215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210764248.

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 1053821215 is about 32462.6125720035. The cubic root of 1053821215 is about 1017.6278384172.

The spelling of 1053821215 in words is "one billion, fifty-three million, eight hundred twenty-one thousand, two hundred fifteen".