1363125539 has 2 divisors, whose sum is σ = 1363125540. Its totient is φ = 1363125538.

The previous prime is 1363125509. The next prime is 1363125559. The reversal of 1363125539 is 9355213631.

It is a strong prime.

It is an emirp because it is prime and its reverse (9355213631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1363125539 is a prime.

It is a super-2 number, since 2×1363125539² = 3716222470148081042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1363125509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681562769 + 681562770.

It is an arithmetic number, because the mean of its divisors is an integer number (681562770).

Almost surely, 2^1363125539 is an apocalyptic number.

1363125539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1363125539 is an equidigital number, since it uses as much as digits as its factorization.

1363125539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72900, while the sum is 38.

The square root of 1363125539 is about 36920.5300476578. The cubic root of 1363125539 is about 1108.7797479633.

The spelling of 1363125539 in words is "one billion, three hundred sixty-three million, one hundred twenty-five thousand, five hundred thirty-nine".