115655669 has 2 divisors, whose sum is σ = 115655670. Its totient is φ = 115655668.

The previous prime is 115655647. The next prime is 115655671. The reversal of 115655669 is 966556511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95746225 + 19909444 = 9785^2 + 4462^2 .

It is an emirp because it is prime and its reverse (966556511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115655669 is a prime.

It is a super-2 number, since 2×115655669² = 26752467543675122, which contains 22 as substring.

Together with 115655671, 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 (115655069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57827834 + 57827835.

It is an arithmetic number, because the mean of its divisors is an integer number (57827835).

Almost surely, 2^115655669 is an apocalyptic number.

It is an amenable number.

115655669 is a deficient number, since it is larger than the sum of its proper divisors (1).

115655669 is an equidigital number, since it uses as much as digits as its factorization.

115655669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 243000, while the sum is 44.

The square root of 115655669 is about 10754.3325687836. The cubic root of 115655669 is about 487.2168598224.

The spelling of 115655669 in words is "one hundred fifteen million, six hundred fifty-five thousand, six hundred sixty-nine".