13770539 has 2 divisors, whose sum is σ = 13770540. Its totient is φ = 13770538.

The previous prime is 13770529. The next prime is 13770553. The reversal of 13770539 is 93507731.

It is a weak prime.

It is an emirp because it is prime and its reverse (93507731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13770539 - 2⁸ = 13770283 is a prime.

It is equal to p₈₉₆₁₂₉ and since 13770539 and 896129 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 13770499 and 13770508.

It is not a weakly prime, because it can be changed into another prime (13770529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6885269 + 6885270.

It is an arithmetic number, because the mean of its divisors is an integer number (6885270).

Almost surely, 2^13770539 is an apocalyptic number.

13770539 is a deficient number, since it is larger than the sum of its proper divisors (1).

13770539 is an equidigital number, since it uses as much as digits as its factorization.

13770539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 13770539 is about 3710.8676882907. The cubic root of 13770539 is about 239.6902195353.

The spelling of 13770539 in words is "thirteen million, seven hundred seventy thousand, five hundred thirty-nine".