2123369 has 2 divisors, whose sum is σ = 2123370. Its totient is φ = 2123368.

The previous prime is 2123357. The next prime is 2123377. The reversal of 2123369 is 9633212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2088025 + 35344 = 1445^2 + 188^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123369 - 2⁴ = 2123353 is a prime.

It is a super-2 number, since 2×2123369² = 9017391820322, which contains 22 as substring.

It is a Chen prime.

It is equal to p₁₅₇₄₁₈ and since 2123369 and 157418 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2123309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061684 + 1061685.

It is an arithmetic number, because the mean of its divisors is an integer number (1061685).

2^2123369 is an apocalyptic number.

It is an amenable number.

2123369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123369 is an equidigital number, since it uses as much as digits as its factorization.

2123369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 26.

The square root of 2123369 is about 1457.1784379409. The cubic root of 2123369 is about 128.5311788766.

It can be divided in two parts, 2123 and 369, that multiplied together give a palindrome (783387).

The spelling of 2123369 in words is "two million, one hundred twenty-three thousand, three hundred sixty-nine".