119898409 has 4 divisors (see below), whose sum is σ = 120086100. Its totient is φ = 119710720.

The previous prime is 119898407. The next prime is 119898437. The reversal of 119898409 is 904898911.

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 67190809 + 52707600 = 8197^2 + 7260^2 .

It is a cyclic number.

It is not a de Polignac number, because 119898409 - 2¹ = 119898407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (119898407) 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 in 3 ways as a sum of consecutive naturals, for example, 92884 + ... + 94165.

It is an arithmetic number, because the mean of its divisors is an integer number (30021525).

Almost surely, 2^119898409 is an apocalyptic number.

It is an amenable number.

119898409 is a deficient number, since it is larger than the sum of its proper divisors (187691).

119898409 is an equidigital number, since it uses as much as digits as its factorization.

119898409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187690.

The product of its (nonzero) digits is 186624, while the sum is 49.

The square root of 119898409 is about 10949.8131947536. The cubic root of 119898409 is about 493.1031839288.

The spelling of 119898409 in words is "one hundred nineteen million, eight hundred ninety-eight thousand, four hundred nine".