118114781 has 2 divisors, whose sum is σ = 118114782. Its totient is φ = 118114780.

The previous prime is 118114673. The next prime is 118114783. The reversal of 118114781 is 187411811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106791556 + 11323225 = 10334^2 + 3365^2 .

It is a cyclic number.

It is not a de Polignac number, because 118114781 - 2²⁶ = 51005917 is a prime.

It is a super-2 number, since 2×118114781² = 27902202981355922, which contains 22 as substring.

Together with 118114783, 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 (118114783) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59057390 + 59057391.

It is an arithmetic number, because the mean of its divisors is an integer number (59057391).

Almost surely, 2^118114781 is an apocalyptic number.

It is an amenable number.

118114781 is a deficient number, since it is larger than the sum of its proper divisors (1).

118114781 is an equidigital number, since it uses as much as digits as its factorization.

118114781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792, while the sum is 32.

The square root of 118114781 is about 10868.0624308107. The cubic root of 118114781 is about 490.6457971143.

The spelling of 118114781 in words is "one hundred eighteen million, one hundred fourteen thousand, seven hundred eighty-one".