1345152520 has 16 divisors (see below), whose sum is σ = 3026593260. Its totient is φ = 538060992.

The previous prime is 1345152509. The next prime is 1345152551. The reversal of 1345152520 is 252515431.

It can be written as a sum of positive squares in 2 ways, for example, as 1080699876 + 264452644 = 32874^2 + 16262^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16814367 + ... + 16814446.

Almost surely, 2^1345152520 is an apocalyptic number.

1345152520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1345152520 is an abundant number, since it is smaller than the sum of its proper divisors (1681440740).

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

1345152520 is a wasteful number, since it uses less digits than its factorization.

1345152520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33628824 (or 33628820 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1345152520 is about 36676.3209714388. The cubic root of 1345152520 is about 1103.8850283723.

Adding to 1345152520 its reverse (252515431), we get a palindrome (1597667951).

The spelling of 1345152520 in words is "one billion, three hundred forty-five million, one hundred fifty-two thousand, five hundred twenty".