1345530552 has 32 divisors (see below), whose sum is σ = 3561699600. Its totient is φ = 422127104.

The previous prime is 1345530551. The next prime is 1345530559. The reversal of 1345530552 is 2550355431.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345530551) 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 7 ways as a sum of consecutive naturals, for example, 1648527 + ... + 1649342.

Almost surely, 2^1345530552 is an apocalyptic number.

1345530552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1345530552 is an abundant number, since it is smaller than the sum of its proper divisors (2216169048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1345530552 is a wasteful number, since it uses less digits than its factorization.

1345530552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3297895 (or 3297891 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 1345530552 is about 36681.4742342780. The cubic root of 1345530552 is about 1103.9884279925.

Adding to 1345530552 its reverse (2550355431), we get a palindrome (3895885983).

The spelling of 1345530552 in words is "one billion, three hundred forty-five million, five hundred thirty thousand, five hundred fifty-two".