2129047 has 2 divisors, whose sum is σ = 2129048. Its totient is φ = 2129046.

The previous prime is 2129027. The next prime is 2129051. The reversal of 2129047 is 7409212.

2129047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2129047 is a prime.

It is a super-2 number, since 2×2129047² = 9065682256418, which contains 22 as substring.

It is a zygodrome in base 6.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2129027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064523 + 1064524.

It is an arithmetic number, because the mean of its divisors is an integer number (1064524).

2^2129047 is an apocalyptic number.

2129047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2129047 is an equidigital number, since it uses as much as digits as its factorization.

2129047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 2129047 is about 1459.1254229846. The cubic root of 2129047 is about 128.6456432789.

The spelling of 2129047 in words is "two million, one hundred twenty-nine thousand, forty-seven".