1053045143521 has 4 divisors (see below), whose sum is σ = 1203480164032. Its totient is φ = 902610123012.

The previous prime is 1053045143497. The next prime is 1053045143537. The reversal of 1053045143521 is 1253415403501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1053045143521 - 2²¹ = 1053043046369 is a prime.

It is a super-2 number, since 2×1053045143521² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1053045143021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75217510245 + ... + 75217510258.

It is an arithmetic number, because the mean of its divisors is an integer number (300870041008).

Almost surely, 2^{1053045143521} is an apocalyptic number.

It is an amenable number.

1053045143521 is a deficient number, since it is larger than the sum of its proper divisors (150435020511).

1053045143521 is an equidigital number, since it uses as much as digits as its factorization.

1053045143521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150435020510.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 1053045143521 in words is "one trillion, fifty-three billion, forty-five million, one hundred forty-three thousand, five hundred twenty-one".