1352542321 has 24 divisors (see below), whose sum is σ = 1572226200. Its totient is φ = 1158782976.

The previous prime is 1352542319. The next prime is 1352542463. The reversal of 1352542321 is 1232452531.

It can be written as a sum of positive squares in 12 ways, for example, as 115261696 + 1237280625 = 10736^2 + 35175^2 .

It is not a de Polignac number, because 1352542321 - 2¹ = 1352542319 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 1352542321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352542621) 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 23 ways as a sum of consecutive naturals, for example, 206505 + ... + 212953.

It is an arithmetic number, because the mean of its divisors is an integer number (65509425).

Almost surely, 2^1352542321 is an apocalyptic number.

It is an amenable number.

1352542321 is a deficient number, since it is larger than the sum of its proper divisors (219683879).

1352542321 is a wasteful number, since it uses less digits than its factorization.

1352542321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6565 (or 6552 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 1352542321 is about 36776.9264757130. The cubic root of 1352542321 is about 1105.9027916247.

Adding to 1352542321 its reverse (1232452531), we get a palindrome (2584994852).

The spelling of 1352542321 in words is "one billion, three hundred fifty-two million, five hundred forty-two thousand, three hundred twenty-one".