1366287823 has 2 divisors, whose sum is σ = 1366287824. Its totient is φ = 1366287822.

The previous prime is 1366287809. The next prime is 1366287827. The reversal of 1366287823 is 3287826631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1366287823 - 2⁹ = 1366287311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1366287827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683143911 + 683143912.

It is an arithmetic number, because the mean of its divisors is an integer number (683143912).

Almost surely, 2^1366287823 is an apocalyptic number.

1366287823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366287823 is an equidigital number, since it uses as much as digits as its factorization.

1366287823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 46.

The square root of 1366287823 is about 36963.3307887696. The cubic root of 1366287823 is about 1109.6364967778.

The spelling of 1366287823 in words is "one billion, three hundred sixty-six million, two hundred eighty-seven thousand, eight hundred twenty-three".