1352063521 has 4 divisors (see below), whose sum is σ = 1352596500. Its totient is φ = 1351530544.

The previous prime is 1352063507. The next prime is 1352063527. The reversal of 1352063521 is 1253602531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1253602531 = 20123 ⋅62297.

It can be written as a sum of positive squares in 2 ways, for example, as 702833121 + 649230400 = 26511^2 + 25480^2 .

It is a cyclic number.

It is not a de Polignac number, because 1352063521 - 2⁷ = 1352063393 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 1352063521.

It is not an unprimeable number, because it can be changed into a prime (1352063527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262666 + ... + 267763.

It is an arithmetic number, because the mean of its divisors is an integer number (338149125).

Almost surely, 2^1352063521 is an apocalyptic number.

It is an amenable number.

1352063521 is a deficient number, since it is larger than the sum of its proper divisors (532979).

1352063521 is an equidigital number, since it uses as much as digits as its factorization.

1352063521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532978.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 1352063521 is about 36770.4163832829. The cubic root of 1352063521 is about 1105.7722796887.

The spelling of 1352063521 in words is "one billion, three hundred fifty-two million, sixty-three thousand, five hundred twenty-one".