119438509 has 2 divisors, whose sum is σ = 119438510. Its totient is φ = 119438508.

The previous prime is 119438467. The next prime is 119438513. The reversal of 119438509 is 905834911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105637284 + 13801225 = 10278^2 + 3715^2 .

It is a cyclic number.

It is not a de Polignac number, because 119438509 - 2¹¹ = 119436461 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (119435509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59719254 + 59719255.

It is an arithmetic number, because the mean of its divisors is an integer number (59719255).

Almost surely, 2^119438509 is an apocalyptic number.

It is an amenable number.

119438509 is a deficient number, since it is larger than the sum of its proper divisors (1).

119438509 is an equidigital number, since it uses as much as digits as its factorization.

119438509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 119438509 is about 10928.7926597589. The cubic root of 119438509 is about 492.4719030240.

The spelling of 119438509 in words is "one hundred nineteen million, four hundred thirty-eight thousand, five hundred nine".