2119969 has 2 divisors, whose sum is σ = 2119970. Its totient is φ = 2119968.

The previous prime is 2119967. The next prime is 2120009. The reversal of 2119969 is 9699112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1288225 + 831744 = 1135^2 + 912^2 .

It is a cyclic number.

It is not a de Polignac number, because 2119969 - 2¹ = 2119967 is a prime.

It is a super-2 number, since 2×2119969² = 8988537121922, which contains 22 as substring.

Together with 2119967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2119967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059984 + 1059985.

It is an arithmetic number, because the mean of its divisors is an integer number (1059985).

2^2119969 is an apocalyptic number.

It is an amenable number.

2119969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2119969 is an equidigital number, since it uses as much as digits as its factorization.

2119969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 37.

The square root of 2119969 is about 1456.0113323735. The cubic root of 2119969 is about 128.4625396113.

The spelling of 2119969 in words is "two million, one hundred nineteen thousand, nine hundred sixty-nine".