1366452539 has 2 divisors, whose sum is σ = 1366452540. Its totient is φ = 1366452538.

The previous prime is 1366452523. The next prime is 1366452541. The reversal of 1366452539 is 9352546631.

It is a strong prime.

It is an emirp because it is prime and its reverse (9352546631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1366452539 - 2⁴ = 1366452523 is a prime.

It is a Sophie Germain prime.

Together with 1366452541, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1366452539.

It is not a weakly prime, because it can be changed into another prime (1366452559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683226269 + 683226270.

It is an arithmetic number, because the mean of its divisors is an integer number (683226270).

Almost surely, 2^1366452539 is an apocalyptic number.

1366452539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366452539 is an equidigital number, since it uses as much as digits as its factorization.

1366452539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583200, while the sum is 44.

The square root of 1366452539 is about 36965.5588216924. The cubic root of 1366452539 is about 1109.6810865872.

The spelling of 1366452539 in words is "one billion, three hundred sixty-six million, four hundred fifty-two thousand, five hundred thirty-nine".