1356986803 has 4 divisors (see below), whose sum is σ = 1393662160. Its totient is φ = 1320311448.

The previous prime is 1356986789. The next prime is 1356986849. The reversal of 1356986803 is 3086896531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1356986803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1356986003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18337623 + ... + 18337696.

It is an arithmetic number, because the mean of its divisors is an integer number (348415540).

Almost surely, 2^1356986803 is an apocalyptic number.

1356986803 is a deficient number, since it is larger than the sum of its proper divisors (36675357).

1356986803 is an equidigital number, since it uses as much as digits as its factorization.

1356986803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36675356.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 1356986803 is about 36837.3017877260. The cubic root of 1356986803 is about 1107.1128070167.

The spelling of 1356986803 in words is "one billion, three hundred fifty-six million, nine hundred eighty-six thousand, eight hundred three".