1065081893 has 2 divisors, whose sum is σ = 1065081894. Its totient is φ = 1065081892.

The previous prime is 1065081851. The next prime is 1065081929. The reversal of 1065081893 is 3981805601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 991431169 + 73650724 = 31487^2 + 8582^2 .

It is a cyclic number.

It is not a de Polignac number, because 1065081893 - 2¹⁴ = 1065065509 is a prime.

It is a super-2 number, since 2×1065081893² = 2268798877592926898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1065081893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1065081793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532540946 + 532540947.

It is an arithmetic number, because the mean of its divisors is an integer number (532540947).

Almost surely, 2^1065081893 is an apocalyptic number.

It is an amenable number.

1065081893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065081893 is an equidigital number, since it uses as much as digits as its factorization.

1065081893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 1065081893 is about 32635.5924260615. The cubic root of 1065081893 is about 1021.2396477994.

The spelling of 1065081893 in words is "one billion, sixty-five million, eighty-one thousand, eight hundred ninety-three".