1352565145 has 4 divisors (see below), whose sum is σ = 1623078180. Its totient is φ = 1082052112.

The previous prime is 1352565143. The next prime is 1352565157. The reversal of 1352565145 is 5415652531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 842392576 + 510172569 = 29024^2 + 22587^2 .

It is a cyclic number.

It is not a de Polignac number, because 1352565145 - 2¹ = 1352565143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1352565143) 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 3 ways as a sum of consecutive naturals, for example, 135256510 + ... + 135256519.

It is an arithmetic number, because the mean of its divisors is an integer number (405769545).

Almost surely, 2^1352565145 is an apocalyptic number.

It is an amenable number.

1352565145 is a deficient number, since it is larger than the sum of its proper divisors (270513035).

1352565145 is an equidigital number, since it uses as much as digits as its factorization.

1352565145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270513034.

The product of its digits is 90000, while the sum is 37.

The square root of 1352565145 is about 36777.2367776591. The cubic root of 1352565145 is about 1105.9090122516.

The spelling of 1352565145 in words is "one billion, three hundred fifty-two million, five hundred sixty-five thousand, one hundred forty-five".