1109172707 has 2 divisors, whose sum is σ = 1109172708. Its totient is φ = 1109172706.

The previous prime is 1109172703. The next prime is 1109172733. The reversal of 1109172707 is 7072719011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1109172707 - 2² = 1109172703 is a prime.

It is not a weakly prime, because it can be changed into another prime (1109172703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554586353 + 554586354.

It is an arithmetic number, because the mean of its divisors is an integer number (554586354).

Almost surely, 2^1109172707 is an apocalyptic number.

1109172707 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109172707 is an equidigital number, since it uses as much as digits as its factorization.

1109172707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6174, while the sum is 35.

The square root of 1109172707 is about 33304.2445793325. The cubic root of 1109172707 is about 1035.1415108306.

The spelling of 1109172707 in words is "one billion, one hundred nine million, one hundred seventy-two thousand, seven hundred seven".