119857309 has 16 divisors (see below), whose sum is σ = 144252864. Its totient is φ = 98121600.

The previous prime is 119857303. The next prime is 119857343. The reversal of 119857309 is 903758911.

It is a cyclic number.

It is not a de Polignac number, because 119857309 - 2⁵ = 119857277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119857303) 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 15 ways as a sum of consecutive naturals, for example, 4359 + ... + 16084.

It is an arithmetic number, because the mean of its divisors is an integer number (9015804).

Almost surely, 2^119857309 is an apocalyptic number.

It is an amenable number.

119857309 is a deficient number, since it is larger than the sum of its proper divisors (24395555).

119857309 is a wasteful number, since it uses less digits than its factorization.

119857309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20508.

The product of its (nonzero) digits is 68040, while the sum is 43.

The square root of 119857309 is about 10947.9362895479. The cubic root of 119857309 is about 493.0468338426.

The spelling of 119857309 in words is "one hundred nineteen million, eight hundred fifty-seven thousand, three hundred nine".