1072128571 has 2 divisors, whose sum is σ = 1072128572. Its totient is φ = 1072128570.

The previous prime is 1072128493. The next prime is 1072128581. The reversal of 1072128571 is 1758212701.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1072128571 is a prime.

It is a super-2 number, since 2×1072128571² = 2298919345509004082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1072128581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536064285 + 536064286.

It is an arithmetic number, because the mean of its divisors is an integer number (536064286).

Almost surely, 2^1072128571 is an apocalyptic number.

1072128571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072128571 is an equidigital number, since it uses as much as digits as its factorization.

1072128571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 34.

The square root of 1072128571 is about 32743.3744595758. The cubic root of 1072128571 is about 1023.4869036281.

The spelling of 1072128571 in words is "one billion, seventy-two million, one hundred twenty-eight thousand, five hundred seventy-one".