119661109 has 2 divisors, whose sum is σ = 119661110. Its totient is φ = 119661108.

The previous prime is 119661067. The next prime is 119661127. The reversal of 119661109 is 901166911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82719025 + 36942084 = 9095^2 + 6078^2 .

It is a cyclic number.

It is not a de Polignac number, because 119661109 - 2¹³ = 119652917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (119661169) 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, 59830554 + 59830555.

It is an arithmetic number, because the mean of its divisors is an integer number (59830555).

Almost surely, 2^119661109 is an apocalyptic number.

It is an amenable number.

119661109 is a deficient number, since it is larger than the sum of its proper divisors (1).

119661109 is an equidigital number, since it uses as much as digits as its factorization.

119661109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 34.

The square root of 119661109 is about 10938.9720266577. The cubic root of 119661109 is about 492.7776564866. Note that the first 3 decimals are identical.

The spelling of 119661109 in words is "one hundred nineteen million, six hundred sixty-one thousand, one hundred nine".