1353242565265 has 4 divisors (see below), whose sum is σ = 1623891078324. Its totient is φ = 1082594052208.

The previous prime is 1353242565247. The next prime is 1353242565277. The reversal of 1353242565265 is 5625652423531.

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 997807203409 + 355435361856 = 998903^2 + 596184^2 .

It is a cyclic number.

It is not a de Polignac number, because 1353242565265 - 2¹⁵ = 1353242532497 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135324256522 + ... + 135324256531.

It is an arithmetic number, because the mean of its divisors is an integer number (405972769581).

Almost surely, 2^{1353242565265} is an apocalyptic number.

It is an amenable number.

1353242565265 is a deficient number, since it is larger than the sum of its proper divisors (270648513059).

1353242565265 is an equidigital number, since it uses as much as digits as its factorization.

1353242565265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270648513058.

The product of its digits is 6480000, while the sum is 49.

Adding to 1353242565265 its reverse (5625652423531), we get a palindrome (6978894988796).

The spelling of 1353242565265 in words is "one trillion, three hundred fifty-three billion, two hundred forty-two million, five hundred sixty-five thousand, two hundred sixty-five".