19120069 has 2 divisors, whose sum is σ = 19120070. Its totient is φ = 19120068.

The previous prime is 19120067. The next prime is 19120091. The reversal of 19120069 is 96002191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19027044 + 93025 = 4362^2 + 305^2 .

It is an emirp because it is prime and its reverse (96002191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19120069 - 2¹ = 19120067 is a prime.

It is a super-2 number, since 2×19120069² = 731154077129522, which contains 22 as substring.

Together with 19120067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19120067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9560034 + 9560035.

It is an arithmetic number, because the mean of its divisors is an integer number (9560035).

Almost surely, 2^19120069 is an apocalyptic number.

It is an amenable number.

19120069 is a deficient number, since it is larger than the sum of its proper divisors (1).

19120069 is an equidigital number, since it uses as much as digits as its factorization.

19120069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 19120069 is about 4372.6501117743. The cubic root of 19120069 is about 267.4010767653.

The spelling of 19120069 in words is "nineteen million, one hundred twenty thousand, sixty-nine".