1345528736 has 12 divisors (see below), whose sum is σ = 2649009762. Its totient is φ = 672764352.

The previous prime is 1345528729. The next prime is 1345528753. The reversal of 1345528736 is 6378255431.

It can be written as a sum of positive squares in only one way, i.e., 1332250000 + 13278736 = 36500^2 + 3644^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

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 as a sum of consecutive naturals, namely, 21023855 + ... + 21023918.

Almost surely, 2^1345528736 is an apocalyptic number.

1345528736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1345528736 is a deficient number, since it is larger than the sum of its proper divisors (1303481026).

1345528736 is an equidigital number, since it uses as much as digits as its factorization.

1345528736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42047783 (or 42047775 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The square root of 1345528736 is about 36681.4494806299. The cubic root of 1345528736 is about 1103.9879313250.

The spelling of 1345528736 in words is "one billion, three hundred forty-five million, five hundred twenty-eight thousand, seven hundred thirty-six".