2057147 has 2 divisors, whose sum is σ = 2057148. Its totient is φ = 2057146.

The previous prime is 2057141. The next prime is 2057177. The reversal of 2057147 is 7417502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2057147 - 2⁸ = 2056891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2057141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028573 + 1028574.

It is an arithmetic number, because the mean of its divisors is an integer number (1028574).

2^2057147 is an apocalyptic number.

2057147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057147 is an equidigital number, since it uses as much as digits as its factorization.

2057147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 2057147 is about 1434.2757754351. The cubic root of 2057147 is about 127.1808653297.

The spelling of 2057147 in words is "two million, fifty-seven thousand, one hundred forty-seven".