119857189 has 2 divisors, whose sum is σ = 119857190. Its totient is φ = 119857188.

The previous prime is 119857121. The next prime is 119857201. The reversal of 119857189 is 981758911.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105226564 + 14630625 = 10258^2 + 3825^2 .

It is a cyclic number.

It is not a de Polignac number, because 119857189 - 2⁷ = 119857061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (119857489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59928594 + 59928595.

It is an arithmetic number, because the mean of its divisors is an integer number (59928595).

Almost surely, 2^119857189 is an apocalyptic number.

It is an amenable number.

119857189 is a deficient number, since it is larger than the sum of its proper divisors (1).

119857189 is an equidigital number, since it uses as much as digits as its factorization.

119857189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 49.

The square root of 119857189 is about 10947.9308090616. The cubic root of 119857189 is about 493.0466692980.

The spelling of 119857189 in words is "one hundred nineteen million, eight hundred fifty-seven thousand, one hundred eighty-nine".