1365243503 has 8 divisors (see below), whose sum is σ = 1517690496. Its totient is φ = 1219572000.

The previous prime is 1365243493. The next prime is 1365243521. The reversal of 1365243503 is 3053425631.

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

It is a cyclic number.

It is not a de Polignac number, because 1365243503 - 2⁴ = 1365243487 is a prime.

It is a super-2 number, since 2×1365243503² = 3727779644967422018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1365243503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1365243533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1693448 + ... + 1694253.

It is an arithmetic number, because the mean of its divisors is an integer number (189711312).

Almost surely, 2^1365243503 is an apocalyptic number.

1365243503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1365243503 is a deficient number, since it is larger than the sum of its proper divisors (152446993).

1365243503 is a wasteful number, since it uses less digits than its factorization.

1365243503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387745.

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 1365243503 is about 36949.2016557868. The cubic root of 1365243503 is about 1109.3537083983.

The spelling of 1365243503 in words is "one billion, three hundred sixty-five million, two hundred forty-three thousand, five hundred three".