1068507637 has 4 divisors (see below), whose sum is σ = 1074044140. Its totient is φ = 1062971136.

The previous prime is 1068507631. The next prime is 1068507653. The reversal of 1068507637 is 7367058601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 575712036 + 492795601 = 23994^2 + 22199^2 .

It is a cyclic number.

It is not a de Polignac number, because 1068507637 - 2²³ = 1060119029 is a prime.

It is a super-2 number, since 2×1068507637² = 2283417140654647538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1068507593 and 1068507602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068507631) 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 in 3 ways as a sum of consecutive naturals, for example, 2767962 + ... + 2768347.

It is an arithmetic number, because the mean of its divisors is an integer number (268511035).

Almost surely, 2^1068507637 is an apocalyptic number.

It is an amenable number.

1068507637 is a deficient number, since it is larger than the sum of its proper divisors (5536503).

1068507637 is an equidigital number, since it uses as much as digits as its factorization.

1068507637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5536502.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 1068507637 is about 32688.0350740145. The cubic root of 1068507637 is about 1022.3333857321. Note that the first 4 decimals are identical.

The spelling of 1068507637 in words is "one billion, sixty-eight million, five hundred seven thousand, six hundred thirty-seven".