1071135557 has 2 divisors, whose sum is σ = 1071135558. Its totient is φ = 1071135556.

The previous prime is 1071135523. The next prime is 1071135577. The reversal of 1071135557 is 7555311701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 862361956 + 208773601 = 29366^2 + 14449^2 .

It is a cyclic number.

It is not a de Polignac number, because 1071135557 - 2⁶ = 1071135493 is a prime.

It is a super-2 number, since 2×1071135557² = 2294662762939400498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1071135577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535567778 + 535567779.

It is an arithmetic number, because the mean of its divisors is an integer number (535567779).

Almost surely, 2^1071135557 is an apocalyptic number.

It is an amenable number.

1071135557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071135557 is an equidigital number, since it uses as much as digits as its factorization.

1071135557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18375, while the sum is 35.

The square root of 1071135557 is about 32728.2073600129. The cubic root of 1071135557 is about 1023.1708187875.

The spelling of 1071135557 in words is "one billion, seventy-one million, one hundred thirty-five thousand, five hundred fifty-seven".