1366287843 has 16 divisors (see below), whose sum is σ = 1830663296. Its totient is φ = 906396480.

The previous prime is 1366287827. The next prime is 1366287887. The reversal of 1366287843 is 3487826631.

It is not a de Polignac number, because 1366287843 - 2⁴ = 1366287827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1366287792 and 1366287801.

It is not an unprimeable number, because it can be changed into a prime (1366287823) 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 15 ways as a sum of consecutive naturals, for example, 1033623 + ... + 1034943.

It is an arithmetic number, because the mean of its divisors is an integer number (114416456).

Almost surely, 2^1366287843 is an apocalyptic number.

1366287843 is a deficient number, since it is larger than the sum of its proper divisors (464375453).

1366287843 is a wasteful number, since it uses less digits than its factorization.

1366287843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754.

The product of its digits is 1161216, while the sum is 48.

The square root of 1366287843 is about 36963.3310593080. The cubic root of 1366287843 is about 1109.6365021922.

The spelling of 1366287843 in words is "one billion, three hundred sixty-six million, two hundred eighty-seven thousand, eight hundred forty-three".