2190269 has 2 divisors, whose sum is σ = 2190270. Its totient is φ = 2190268.

The previous prime is 2190233. The next prime is 2190271. The reversal of 2190269 is 9620912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2059225 + 131044 = 1435^2 + 362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2190269 is a prime.

It is a super-2 number, since 2×2190269² = 9594556584722, which contains 22 as substring.

Together with 2190271, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2190299) 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 as a sum of consecutive naturals, namely, 1095134 + 1095135.

It is an arithmetic number, because the mean of its divisors is an integer number (1095135).

2^2190269 is an apocalyptic number.

It is an amenable number.

2190269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190269 is an equidigital number, since it uses as much as digits as its factorization.

2190269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 2190269 is about 1479.9557425815. The cubic root of 2190269 is about 129.8671028462.

The spelling of 2190269 in words is "two million, one hundred ninety thousand, two hundred sixty-nine".