2571061 has 4 divisors (see below), whose sum is σ = 2706400. Its totient is φ = 2435724.

The previous prime is 2571059. The next prime is 2571067. The reversal of 2571061 is 1601752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2571061 - 2¹ = 2571059 is a prime.

It is a super-2 number, since 2×2571061² = 13220709331442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2571067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67641 + ... + 67678.

It is an arithmetic number, because the mean of its divisors is an integer number (676600).

2^2571061 is an apocalyptic number.

It is an amenable number.

2571061 is a deficient number, since it is larger than the sum of its proper divisors (135339).

2571061 is a wasteful number, since it uses less digits than its factorization.

2571061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135338.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 2571061 is about 1603.4528368493. The cubic root of 2571061 is about 136.9948139476.

The spelling of 2571061 in words is "two million, five hundred seventy-one thousand, sixty-one".