2125571 has 8 divisors (see below), whose sum is σ = 2479200. Its totient is φ = 1821624.

The previous prime is 2125567. The next prime is 2125579. The reversal of 2125571 is 1755212.

It is a happy number.

It is not a de Polignac number, because 2125571 - 2² = 2125567 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2125579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2756 + ... + 3441.

It is an arithmetic number, because the mean of its divisors is an integer number (309900).

2^2125571 is an apocalyptic number.

2125571 is a deficient number, since it is larger than the sum of its proper divisors (353629).

2125571 is an frugal number, since it uses more digits than its factorization.

2125571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6218 (or 6204 counting only the distinct ones).

The product of its digits is 700, while the sum is 23.

The square root of 2125571 is about 1457.9338119407. The cubic root of 2125571 is about 128.5755938098.

The spelling of 2125571 in words is "two million, one hundred twenty-five thousand, five hundred seventy-one".