118761691 has 2 divisors, whose sum is σ = 118761692. Its totient is φ = 118761690.

The previous prime is 118761661. The next prime is 118761697. The reversal of 118761691 is 196167811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118761691 - 2⁷ = 118761563 is a prime.

It is not a weakly prime, because it can be changed into another prime (118761697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59380845 + 59380846.

It is an arithmetic number, because the mean of its divisors is an integer number (59380846).

Almost surely, 2^118761691 is an apocalyptic number.

118761691 is a deficient number, since it is larger than the sum of its proper divisors (1).

118761691 is an equidigital number, since it uses as much as digits as its factorization.

118761691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 40.

The square root of 118761691 is about 10897.7837655186. The cubic root of 118761691 is about 491.5399159749.

The spelling of 118761691 in words is "one hundred eighteen million, seven hundred sixty-one thousand, six hundred ninety-one".