1068740129 has 4 divisors (see below), whose sum is σ = 1070612400. Its totient is φ = 1066867860.

The previous prime is 1068740117. The next prime is 1068740131. The reversal of 1068740129 is 9210478601.

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: 9210478601 = 383 ⋅24048247.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1068740129 is a prime.

It is a super-2 number, since 2×1068740129² = 2284410926669873282, 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 = 1068740092 and 1068740101.

It is not an unprimeable number, because it can be changed into a prime (1068740429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935279 + ... + 936420.

It is an arithmetic number, because the mean of its divisors is an integer number (267653100).

Almost surely, 2^1068740129 is an apocalyptic number.

It is an amenable number.

1068740129 is a deficient number, since it is larger than the sum of its proper divisors (1872271).

1068740129 is an equidigital number, since it uses as much as digits as its factorization.

1068740129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872270.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1068740129 is about 32691.5911053592. The cubic root of 1068740129 is about 1022.4075287357.

The spelling of 1068740129 in words is "one billion, sixty-eight million, seven hundred forty thousand, one hundred twenty-nine".