1118006729 has 4 divisors (see below), whose sum is σ = 1277721984. Its totient is φ = 958291476.

The previous prime is 1118006711. The next prime is 1118006741. The reversal of 1118006729 is 9276008111.

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: 9276008111 = 4861 ⋅1908251.

It is a cyclic number.

It is not a de Polignac number, because 1118006729 - 2⁸ = 1118006473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1118006779) 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, 79857617 + ... + 79857630.

It is an arithmetic number, because the mean of its divisors is an integer number (319430496).

Almost surely, 2^1118006729 is an apocalyptic number.

It is an amenable number.

1118006729 is a deficient number, since it is larger than the sum of its proper divisors (159715255).

1118006729 is an equidigital number, since it uses as much as digits as its factorization.

1118006729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159715254.

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 1118006729 is about 33436.6076179986. The cubic root of 1118006729 is about 1037.8823802509.

The spelling of 1118006729 in words is "one billion, one hundred eighteen million, six thousand, seven hundred twenty-nine".