118688551 has 2 divisors, whose sum is σ = 118688552. Its totient is φ = 118688550.

The previous prime is 118688527. The next prime is 118688593. The reversal of 118688551 is 155886811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118688551 - 2⁵ = 118688519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118688498 and 118688507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118686551) 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, 59344275 + 59344276.

It is an arithmetic number, because the mean of its divisors is an integer number (59344276).

Almost surely, 2^118688551 is an apocalyptic number.

118688551 is a deficient number, since it is larger than the sum of its proper divisors (1).

118688551 is an equidigital number, since it uses as much as digits as its factorization.

118688551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76800, while the sum is 43.

The square root of 118688551 is about 10894.4275205263. The cubic root of 118688551 is about 491.4389894558.

The spelling of 118688551 in words is "one hundred eighteen million, six hundred eighty-eight thousand, five hundred fifty-one".