118861801 has 2 divisors, whose sum is σ = 118861802. Its totient is φ = 118861800.

The previous prime is 118861759. The next prime is 118861811. The reversal of 118861801 is 108168811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90250000 + 28611801 = 9500^2 + 5349^2 .

It is a cyclic number.

It is not a de Polignac number, because 118861801 - 2¹⁵ = 118829033 is a prime.

It is not a weakly prime, because it can be changed into another prime (118861811) 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, 59430900 + 59430901.

It is an arithmetic number, because the mean of its divisors is an integer number (59430901).

Almost surely, 2^118861801 is an apocalyptic number.

It is an amenable number.

118861801 is a deficient number, since it is larger than the sum of its proper divisors (1).

118861801 is an equidigital number, since it uses as much as digits as its factorization.

118861801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 34.

The square root of 118861801 is about 10902.3759337128. The cubic root of 118861801 is about 491.6779914784.

The spelling of 118861801 in words is "one hundred eighteen million, eight hundred sixty-one thousand, eight hundred one".