118028081 has 2 divisors, whose sum is σ = 118028082. Its totient is φ = 118028080.

The previous prime is 118028051. The next prime is 118028083. The reversal of 118028081 is 180820811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71910400 + 46117681 = 8480^2 + 6791^2 .

It is a cyclic number.

It is not a de Polignac number, because 118028081 - 2²² = 113833777 is a prime.

It is a super-2 number, since 2×118028081² = 27861255809085122, which contains 22 as substring.

Together with 118028083, 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 (118028083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59014040 + 59014041.

It is an arithmetic number, because the mean of its divisors is an integer number (59014041).

Almost surely, 2^118028081 is an apocalyptic number.

It is an amenable number.

118028081 is a deficient number, since it is larger than the sum of its proper divisors (1).

118028081 is an equidigital number, since it uses as much as digits as its factorization.

118028081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 29.

The square root of 118028081 is about 10864.0729471041. The cubic root of 118028081 is about 490.5257178636.

Adding to 118028081 its reverse (180820811), we get a palindrome (298848892).

The spelling of 118028081 in words is "one hundred eighteen million, twenty-eight thousand, eighty-one".