115777 has 2 divisors, whose sum is σ = 115778. Its totient is φ = 115776.

The previous prime is 115771. The next prime is 115781. The reversal of 115777 is 777511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76176 + 39601 = 276^2 + 199^2 .

It is a cyclic number.

It is not a de Polignac number, because 115777 - 2³ = 115769 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (115771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57888 + 57889.

It is an arithmetic number, because the mean of its divisors is an integer number (57889).

2¹¹⁵⁷⁷⁷ is an apocalyptic number.

It is an amenable number.

115777 is a deficient number, since it is larger than the sum of its proper divisors (1).

115777 is an equidigital number, since it uses as much as digits as its factorization.

115777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1715, while the sum is 28.

The square root of 115777 is about 340.2601945570. The cubic root of 115777 is about 48.7387175293.

The spelling of 115777 in words is "one hundred fifteen thousand, seven hundred seventy-seven".