119655989 has 2 divisors, whose sum is σ = 119655990. Its totient is φ = 119655988.

The previous prime is 119655983. The next prime is 119655997. The reversal of 119655989 is 989556911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64673764 + 54982225 = 8042^2 + 7415^2 .

It is a cyclic number.

It is not a de Polignac number, because 119655989 - 2¹² = 119651893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 119655989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (119655983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59827994 + 59827995.

It is an arithmetic number, because the mean of its divisors is an integer number (59827995).

Almost surely, 2^119655989 is an apocalyptic number.

It is an amenable number.

119655989 is a deficient number, since it is larger than the sum of its proper divisors (1).

119655989 is an equidigital number, since it uses as much as digits as its factorization.

119655989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 53.

The square root of 119655989 is about 10938.7379985079. The cubic root of 119655989 is about 492.7706281446.

The spelling of 119655989 in words is "one hundred nineteen million, six hundred fifty-five thousand, nine hundred eighty-nine".