1173070109 has 2 divisors, whose sum is σ = 1173070110. Its totient is φ = 1173070108.

The previous prime is 1173070079. The next prime is 1173070111. The reversal of 1173070109 is 9010703711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1147718884 + 25351225 = 33878^2 + 5035^2 .

It is a cyclic number.

It is not a de Polignac number, because 1173070109 - 2²⁰ = 1172021533 is a prime.

Together with 1173070111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1173070189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586535054 + 586535055.

It is an arithmetic number, because the mean of its divisors is an integer number (586535055).

Almost surely, 2^1173070109 is an apocalyptic number.

It is an amenable number.

1173070109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1173070109 is an equidigital number, since it uses as much as digits as its factorization.

1173070109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1323, while the sum is 29.

The square root of 1173070109 is about 34250.1110801118. Note that the first 3 decimals coincide. The cubic root of 1173070109 is about 1054.6491077174.

The spelling of 1173070109 in words is "one billion, one hundred seventy-three million, seventy thousand, one hundred nine".