119945909 has 4 divisors (see below), whose sum is σ = 121635360. Its totient is φ = 118256460.

The previous prime is 119945887. The next prime is 119945933. The reversal of 119945909 is 909549911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 909549911 = 577 ⋅1576343.

It is a cyclic number.

It is not a de Polignac number, because 119945909 - 2²⁰ = 118897333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119945939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 844619 + ... + 844760.

It is an arithmetic number, because the mean of its divisors is an integer number (30408840).

Almost surely, 2^119945909 is an apocalyptic number.

It is an amenable number.

119945909 is a deficient number, since it is larger than the sum of its proper divisors (1689451).

119945909 is an equidigital number, since it uses as much as digits as its factorization.

119945909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689450.

The product of its (nonzero) digits is 131220, while the sum is 47.

The square root of 119945909 is about 10951.9819667492. The cubic root of 119945909 is about 493.1682926850.

The spelling of 119945909 in words is "one hundred nineteen million, nine hundred forty-five thousand, nine hundred nine".