1009109207 has 2 divisors, whose sum is σ = 1009109208. Its totient is φ = 1009109206.

The previous prime is 1009109161. The next prime is 1009109243. The reversal of 1009109207 is 7029019001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1009109207 - 2⁸ = 1009108951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1009109207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1009109407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504554603 + 504554604.

It is an arithmetic number, because the mean of its divisors is an integer number (504554604).

Almost surely, 2^1009109207 is an apocalyptic number.

1009109207 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009109207 is an equidigital number, since it uses as much as digits as its factorization.

1009109207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 1009109207 is about 31766.4792981533. The cubic root of 1009109207 is about 1003.0272289708.

The spelling of 1009109207 in words is "one billion, nine million, one hundred nine thousand, two hundred seven".