120660187 has 2 divisors, whose sum is σ = 120660188. Its totient is φ = 120660186.

The previous prime is 120660181. The next prime is 120660217. The reversal of 120660187 is 781066021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120660187 - 2³ = 120660179 is a prime.

It is not a weakly prime, because it can be changed into another prime (120660181) 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, 60330093 + 60330094.

It is an arithmetic number, because the mean of its divisors is an integer number (60330094).

Almost surely, 2^120660187 is an apocalyptic number.

120660187 is a deficient number, since it is larger than the sum of its proper divisors (1).

120660187 is an equidigital number, since it uses as much as digits as its factorization.

120660187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 120660187 is about 10984.5430947309. The cubic root of 120660187 is about 494.1452951080.

The spelling of 120660187 in words is "one hundred twenty million, six hundred sixty thousand, one hundred eighty-seven".