2126429 has 2 divisors, whose sum is σ = 2126430. Its totient is φ = 2126428.

The previous prime is 2126407. The next prime is 2126431. The reversal of 2126429 is 9246212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1214404 + 912025 = 1102^2 + 955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2126429 - 2¹² = 2122333 is a prime.

Together with 2126431, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 2126398 and 2126407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2126459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063214 + 1063215.

It is an arithmetic number, because the mean of its divisors is an integer number (1063215).

2^2126429 is an apocalyptic number.

It is an amenable number.

2126429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126429 is an equidigital number, since it uses as much as digits as its factorization.

2126429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 2126429 is about 1458.2280342937. The cubic root of 2126429 is about 128.5928915962.

The spelling of 2126429 in words is "two million, one hundred twenty-six thousand, four hundred twenty-nine".