115227779 has 2 divisors, whose sum is σ = 115227780. Its totient is φ = 115227778.

The previous prime is 115227773. The next prime is 115227781. The reversal of 115227779 is 977722511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115227779 is a prime.

Together with 115227781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115227773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57613889 + 57613890.

It is an arithmetic number, because the mean of its divisors is an integer number (57613890).

Almost surely, 2^115227779 is an apocalyptic number.

115227779 is a deficient number, since it is larger than the sum of its proper divisors (1).

115227779 is an equidigital number, since it uses as much as digits as its factorization.

115227779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61740, while the sum is 41.

The square root of 115227779 is about 10734.4202917531. The cubic root of 115227779 is about 486.6152670325.

The spelling of 115227779 in words is "one hundred fifteen million, two hundred twenty-seven thousand, seven hundred seventy-nine".