1065827261 has 2 divisors, whose sum is σ = 1065827262. Its totient is φ = 1065827260.

The previous prime is 1065827239. The next prime is 1065827281. The reversal of 1065827261 is 1627285601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 663062500 + 402764761 = 25750^2 + 20069^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1065827261 is a prime.

It is a super-2 number, since 2×1065827261² = 2271975500581524242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1065827201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532913630 + 532913631.

It is an arithmetic number, because the mean of its divisors is an integer number (532913631).

Almost surely, 2^1065827261 is an apocalyptic number.

It is an amenable number.

1065827261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065827261 is an equidigital number, since it uses as much as digits as its factorization.

1065827261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 1065827261 is about 32647.0099856021. The cubic root of 1065827261 is about 1021.4778209889.

The spelling of 1065827261 in words is "one billion, sixty-five million, eight hundred twenty-seven thousand, two hundred sixty-one".