115727639 has 2 divisors, whose sum is σ = 115727640. Its totient is φ = 115727638.

The previous prime is 115727629. The next prime is 115727671. The reversal of 115727639 is 936727511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115727639 - 2⁸ = 115727383 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 115727596 and 115727605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115727609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57863819 + 57863820.

It is an arithmetic number, because the mean of its divisors is an integer number (57863820).

Almost surely, 2^115727639 is an apocalyptic number.

115727639 is a deficient number, since it is larger than the sum of its proper divisors (1).

115727639 is an equidigital number, since it uses as much as digits as its factorization.

115727639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 41.

The square root of 115727639 is about 10757.6781416809. The cubic root of 115727639 is about 487.3179003415.

The spelling of 115727639 in words is "one hundred fifteen million, seven hundred twenty-seven thousand, six hundred thirty-nine".