1068562081 has 8 divisors (see below), whose sum is σ = 1137165480. Its totient is φ = 1000597248.

The previous prime is 1068562073. The next prime is 1068562087. The reversal of 1068562081 is 1802658601.

It can be written as a sum of positive squares in 4 ways, for example, as 382593600 + 685968481 = 19560^2 + 26191^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1068562081 - 2³ = 1068562073 is a prime.

It is a super-2 number, since 2×1068562081² = 2283649841902101122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1068562081.

It is not an unprimeable number, because it can be changed into a prime (1068562087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156186 + ... + 162883.

It is an arithmetic number, because the mean of its divisors is an integer number (142145685).

Almost surely, 2^1068562081 is an apocalyptic number.

It is an amenable number.

1068562081 is a deficient number, since it is larger than the sum of its proper divisors (68603399).

1068562081 is a wasteful number, since it uses less digits than its factorization.

1068562081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319283.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 1068562081 is about 32688.8678451855. The cubic root of 1068562081 is about 1022.3507491936.

The spelling of 1068562081 in words is "one billion, sixty-eight million, five hundred sixty-two thousand, eighty-one".