119609 has 6 divisors (see below), whose sum is σ = 139194. Its totient is φ = 102480.

The previous prime is 119591. The next prime is 119611. The reversal of 119609 is 906911.

It can be written as a sum of positive squares in only one way, i.e., 78400 + 41209 = 280^2 + 203^2 .

It is not a de Polignac number, because 119609 - 2¹² = 115513 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (119659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1172 + ... + 1269.

It is an arithmetic number, because the mean of its divisors is an integer number (23199).

2¹¹⁹⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

119609 is a deficient number, since it is larger than the sum of its proper divisors (19585).

119609 is an equidigital number, since it uses as much as digits as its factorization.

119609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455 (or 2448 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 119609 is about 345.8453411570. The cubic root of 119609 is about 49.2706115896.

The spelling of 119609 in words is "one hundred nineteen thousand, six hundred nine".