1150747909 has 2 divisors, whose sum is σ = 1150747910. Its totient is φ = 1150747908.

The previous prime is 1150747879. The next prime is 1150747979. The reversal of 1150747909 is 9097470511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 730620900 + 420127009 = 27030^2 + 20497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1150747909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1150747979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575373954 + 575373955.

It is an arithmetic number, because the mean of its divisors is an integer number (575373955).

Almost surely, 2^1150747909 is an apocalyptic number.

It is an amenable number.

1150747909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150747909 is an equidigital number, since it uses as much as digits as its factorization.

1150747909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 43.

The square root of 1150747909 is about 33922.6754398883. The cubic root of 1150747909 is about 1047.9166275599.

The spelling of 1150747909 in words is "one billion, one hundred fifty million, seven hundred forty-seven thousand, nine hundred nine".