1345131536 has 30 divisors (see below), whose sum is σ = 3031694910. Its totient is φ = 576484608.

The previous prime is 1345131523. The next prime is 1345131589. The reversal of 1345131536 is 6351315431.

It can be written as a sum of positive squares in only one way, i.e., 1228923136 + 116208400 = 35056^2 + 10780^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 857081 + ... + 858648.

It is an arithmetic number, because the mean of its divisors is an integer number (101056497).

Almost surely, 2^1345131536 is an apocalyptic number.

1345131536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1345131536 is an abundant number, since it is smaller than the sum of its proper divisors (1686563374).

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

1345131536 is a wasteful number, since it uses less digits than its factorization.

1345131536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715751 (or 1715738 counting only the distinct ones).

The product of its digits is 16200, while the sum is 32.

The square root of 1345131536 is about 36676.0349001906. The cubic root of 1345131536 is about 1103.8792882441.

Adding to 1345131536 its reverse (6351315431), we get a palindrome (7696446967).

The spelling of 1345131536 in words is "one billion, three hundred forty-five million, one hundred thirty-one thousand, five hundred thirty-six".