115611077 has 2 divisors, whose sum is σ = 115611078. Its totient is φ = 115611076.

The previous prime is 115611017. The next prime is 115611079. The reversal of 115611077 is 770116511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115047076 + 564001 = 10726^2 + 751^2 .

It is an emirp because it is prime and its reverse (770116511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115611077 - 2²⁶ = 48502213 is a prime.

It is a super-2 number, since 2×115611077² = 26731842250199858, which contains 22 as substring.

Together with 115611079, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115611079) 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, 57805538 + 57805539.

It is an arithmetic number, because the mean of its divisors is an integer number (57805539).

Almost surely, 2^115611077 is an apocalyptic number.

It is an amenable number.

115611077 is a deficient number, since it is larger than the sum of its proper divisors (1).

115611077 is an equidigital number, since it uses as much as digits as its factorization.

115611077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 29.

The square root of 115611077 is about 10752.2591579630. The cubic root of 115611077 is about 487.1542349428.

Adding to 115611077 its reverse (770116511), we get a palindrome (885727588).

The spelling of 115611077 in words is "one hundred fifteen million, six hundred eleven thousand, seventy-seven".