1057571 has 8 divisors (see below), whose sum is σ = 1100784. Its totient is φ = 1015200.

The previous prime is 1057561. The next prime is 1057577. The reversal of 1057571 is 1757501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1057571 - 2¹⁸ = 795427 is a prime.

It is a super-2 number, since 2×1057571² = 2236912840082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1057571.

It is not an unprimeable number, because it can be changed into a prime (1057577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3596 + ... + 3878.

It is an arithmetic number, because the mean of its divisors is an integer number (137598).

2^1057571 is an apocalyptic number.

1057571 is a deficient number, since it is larger than the sum of its proper divisors (43213).

1057571 is a wasteful number, since it uses less digits than its factorization.

1057571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421.

The product of its (nonzero) digits is 1225, while the sum is 26.

The square root of 1057571 is about 1028.3827108621. The cubic root of 1057571 is about 101.8833409307.

The spelling of 1057571 in words is "one million, fifty-seven thousand, five hundred seventy-one".