115562539 has 2 divisors, whose sum is σ = 115562540. Its totient is φ = 115562538.

The previous prime is 115562537. The next prime is 115562569. The reversal of 115562539 is 935265511.

It is a weak prime.

It is an emirp because it is prime and its reverse (935265511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115562539 - 2¹ = 115562537 is a prime.

Together with 115562537, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 115562498 and 115562507.

It is not a weakly prime, because it can be changed into another prime (115562537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57781269 + 57781270.

It is an arithmetic number, because the mean of its divisors is an integer number (57781270).

Almost surely, 2^115562539 is an apocalyptic number.

115562539 is a deficient number, since it is larger than the sum of its proper divisors (1).

115562539 is an equidigital number, since it uses as much as digits as its factorization.

115562539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40500, while the sum is 37.

The square root of 115562539 is about 10750.0018139533. The cubic root of 115562539 is about 487.0860500055.

The spelling of 115562539 in words is "one hundred fifteen million, five hundred sixty-two thousand, five hundred thirty-nine".