119911009 has 4 divisors (see below), whose sum is σ = 121011220. Its totient is φ = 118810800.

The previous prime is 119910997. The next prime is 119911061. The reversal of 119911009 is 900119911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72301009 + 47610000 = 8503^2 + 6900^2 .

It is a cyclic number.

It is not a de Polignac number, because 119911009 - 2¹³ = 119902817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (119911079) 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 in 3 ways as a sum of consecutive naturals, for example, 549942 + ... + 550159.

It is an arithmetic number, because the mean of its divisors is an integer number (30252805).

Almost surely, 2^119911009 is an apocalyptic number.

It is an amenable number.

119911009 is a deficient number, since it is larger than the sum of its proper divisors (1100211).

119911009 is a wasteful number, since it uses less digits than its factorization.

119911009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100210.

The product of its (nonzero) digits is 729, while the sum is 31.

The square root of 119911009 is about 10950.3885319198. The cubic root of 119911009 is about 493.1204565585.

The spelling of 119911009 in words is "one hundred nineteen million, nine hundred eleven thousand, nine".