1068748309 has 4 divisors (see below), whose sum is σ = 1124998240. Its totient is φ = 1012498380.

The previous prime is 1068748297. The next prime is 1068748313. The reversal of 1068748309 is 9038478601.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9038478601 = 7487 ⋅1207223.

It is a cyclic number.

It is not a de Polignac number, because 1068748309 - 2¹³ = 1068740117 is a prime.

It is a super-2 number, since 2×1068748309² = 2284445895980718962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1068748349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28124937 + ... + 28124974.

It is an arithmetic number, because the mean of its divisors is an integer number (281249560).

Almost surely, 2^1068748309 is an apocalyptic number.

1068748309 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1068748309 is a deficient number, since it is larger than the sum of its proper divisors (56249931).

1068748309 is an equidigital number, since it uses as much as digits as its factorization.

1068748309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56249930.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 1068748309 is about 32691.7162137444. The cubic root of 1068748309 is about 1022.4101371878.

It can be divided in two parts, 10687 and 48309, that added together give a triangular number (58996 = T₃₄₃).

The spelling of 1068748309 in words is "one billion, sixty-eight million, seven hundred forty-eight thousand, three hundred nine".