1340633503 has 8 divisors (see below), whose sum is σ = 1463841360. Its totient is φ = 1217647680.

The previous prime is 1340633501. The next prime is 1340633527. The reversal of 1340633503 is 3053360431.

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 1340633503 - 2¹ = 1340633501 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 (1340633501) 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, 42750 + ... + 67147.

It is an arithmetic number, because the mean of its divisors is an integer number (182980170).

Almost surely, 2^1340633503 is an apocalyptic number.

1340633503 is a deficient number, since it is larger than the sum of its proper divisors (123207857).

1340633503 is a wasteful number, since it uses less digits than its factorization.

1340633503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111017.

The product of its (nonzero) digits is 9720, while the sum is 28.

The square root of 1340633503 is about 36614.6624045614. The cubic root of 1340633503 is about 1102.6474805064.

Adding to 1340633503 its reverse (3053360431), we get a palindrome (4393993934).

The spelling of 1340633503 in words is "one billion, three hundred forty million, six hundred thirty-three thousand, five hundred three".