118348661 has 2 divisors, whose sum is σ = 118348662. Its totient is φ = 118348660.

The previous prime is 118348627. The next prime is 118348687. The reversal of 118348661 is 166843811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79834225 + 38514436 = 8935^2 + 6206^2 .

It is a cyclic number.

It is not a de Polignac number, because 118348661 - 2⁶ = 118348597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118348691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59174330 + 59174331.

It is an arithmetic number, because the mean of its divisors is an integer number (59174331).

Almost surely, 2^118348661 is an apocalyptic number.

It is an amenable number.

118348661 is a deficient number, since it is larger than the sum of its proper divisors (1).

118348661 is an equidigital number, since it uses as much as digits as its factorization.

118348661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 38.

The square root of 118348661 is about 10878.8170772378. The cubic root of 118348661 is about 490.9694274583.

The spelling of 118348661 in words is "one hundred eighteen million, three hundred forty-eight thousand, six hundred sixty-one".