1117370729 has 2 divisors, whose sum is σ = 1117370730. Its totient is φ = 1117370728.

The previous prime is 1117370699. The next prime is 1117370743. The reversal of 1117370729 is 9270737111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1117364329 + 6400 = 33427^2 + 80^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117370729 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1117370692 and 1117370701.

It is not a weakly prime, because it can be changed into another prime (1117370759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558685364 + 558685365.

It is an arithmetic number, because the mean of its divisors is an integer number (558685365).

Almost surely, 2^1117370729 is an apocalyptic number.

It is an amenable number.

1117370729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117370729 is an equidigital number, since it uses as much as digits as its factorization.

1117370729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18522, while the sum is 38.

The square root of 1117370729 is about 33427.0957308588. The cubic root of 1117370729 is about 1037.6855363545.

The spelling of 1117370729 in words is "one billion, one hundred seventeen million, three hundred seventy thousand, seven hundred twenty-nine".