1365241253 has 8 divisors (see below), whose sum is σ = 1458344088. Its totient is φ = 1273560064.

The previous prime is 1365241243. The next prime is 1365241261. The reversal of 1365241253 is 3521425631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6360484 + 1358880769 = 2522^2 + 36863^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1365241253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1365241243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353426 + ... + 357267.

It is an arithmetic number, because the mean of its divisors is an integer number (182293011).

Almost surely, 2^1365241253 is an apocalyptic number.

It is an amenable number.

1365241253 is a deficient number, since it is larger than the sum of its proper divisors (93102835).

1365241253 is a wasteful number, since it uses less digits than its factorization.

1365241253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710823.

The product of its digits is 21600, while the sum is 32.

The square root of 1365241253 is about 36949.1712085670. The cubic root of 1365241253 is about 1109.3530989717.

Adding to 1365241253 its reverse (3521425631), we get a palindrome (4886666884).

The spelling of 1365241253 in words is "one billion, three hundred sixty-five million, two hundred forty-one thousand, two hundred fifty-three".