2125771 has 2 divisors, whose sum is σ = 2125772. Its totient is φ = 2125770.

The previous prime is 2125757. The next prime is 2125793. The reversal of 2125771 is 1775212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2125771 - 2⁹ = 2125259 is a prime.

It is not a weakly prime, because it can be changed into another prime (2125741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062885 + 1062886.

It is an arithmetic number, because the mean of its divisors is an integer number (1062886).

2^2125771 is an apocalyptic number.

2125771 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125771 is an equidigital number, since it uses as much as digits as its factorization.

2125771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 980, while the sum is 25.

The square root of 2125771 is about 1458.0024005467. The cubic root of 2125771 is about 128.5796263438.

The spelling of 2125771 in words is "two million, one hundred twenty-five thousand, seven hundred seventy-one".