1071571 has 2 divisors, whose sum is σ = 1071572. Its totient is φ = 1071570.

The previous prime is 1071569. The next prime is 1071589. The reversal of 1071571 is 1751701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1071571 - 2¹ = 1071569 is a prime.

It is a super-2 number, since 2×1071571² = 2296528816082, which contains 22 as substring.

Together with 1071569, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1071541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535785 + 535786.

It is an arithmetic number, because the mean of its divisors is an integer number (535786).

2^1071571 is an apocalyptic number.

1071571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071571 is an equidigital number, since it uses as much as digits as its factorization.

1071571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 245, while the sum is 22.

The square root of 1071571 is about 1035.1671362635. The cubic root of 1071571 is about 102.3309448054.

The spelling of 1071571 in words is "one million, seventy-one thousand, five hundred seventy-one".