1071661751 has 2 divisors, whose sum is σ = 1071661752. Its totient is φ = 1071661750.

The previous prime is 1071661739. The next prime is 1071661763. The reversal of 1071661751 is 1571661701.

It is a balanced prime because it is at equal distance from previous prime (1071661739) and next prime (1071661763).

It is a cyclic number.

It is not a de Polignac number, because 1071661751 - 2¹⁰ = 1071660727 is a prime.

It is a super-2 number, since 2×1071661751² = 2296917817112772002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1071661951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535830875 + 535830876.

It is an arithmetic number, because the mean of its divisors is an integer number (535830876).

Almost surely, 2^1071661751 is an apocalyptic number.

1071661751 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071661751 is an equidigital number, since it uses as much as digits as its factorization.

1071661751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 35.

The square root of 1071661751 is about 32736.2452184120. The cubic root of 1071661751 is about 1023.3383351539.

The spelling of 1071661751 in words is "one billion, seventy-one million, six hundred sixty-one thousand, seven hundred fifty-one".