115720027 has 2 divisors, whose sum is σ = 115720028. Its totient is φ = 115720026.

The previous prime is 115720019. The next prime is 115720039. The reversal of 115720027 is 720027511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115720027 - 2³ = 115720019 is a prime.

It is a super-2 number, since 2×115720027² = 26782249297761458, which contains 22 as substring.

It is equal to p_6611443 and since 115720027 and 6611443 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 115719983 and 115720010.

It is not a weakly prime, because it can be changed into another prime (115720097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57860013 + 57860014.

It is an arithmetic number, because the mean of its divisors is an integer number (57860014).

Almost surely, 2^115720027 is an apocalyptic number.

115720027 is a deficient number, since it is larger than the sum of its proper divisors (1).

115720027 is an equidigital number, since it uses as much as digits as its factorization.

115720027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 115720027 is about 10757.3243420471. The cubic root of 115720027 is about 487.3072156419.

Adding to 115720027 its reverse (720027511), we get a palindrome (835747538).

The spelling of 115720027 in words is "one hundred fifteen million, seven hundred twenty thousand, twenty-seven".