1353116521 has 8 divisors (see below), whose sum is σ = 1426080320. Its totient is φ = 1280327472.

The previous prime is 1353116507. The next prime is 1353116549. The reversal of 1353116521 is 1256113531.

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 1353116521 - 2¹³ = 1353108329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1353116521.

It is not an unprimeable number, because it can be changed into a prime (1353116591) 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, 27630 + ... + 58903.

It is an arithmetic number, because the mean of its divisors is an integer number (178260040).

Almost surely, 2^1353116521 is an apocalyptic number.

It is an amenable number.

1353116521 is a deficient number, since it is larger than the sum of its proper divisors (72963799).

1353116521 is an equidigital number, since it uses as much as digits as its factorization.

1353116521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87375.

The product of its digits is 2700, while the sum is 28.

The square root of 1353116521 is about 36784.7321724652. The cubic root of 1353116521 is about 1106.0592672074.

The spelling of 1353116521 in words is "one billion, three hundred fifty-three million, one hundred sixteen thousand, five hundred twenty-one".