1047045709 has 2 divisors, whose sum is σ = 1047045710. Its totient is φ = 1047045708.

The previous prime is 1047045661. The next prime is 1047045731. The reversal of 1047045709 is 9075407401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1033429609 + 13616100 = 32147^2 + 3690^2 .

It is an emirp because it is prime and its reverse (9075407401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1047045709 - 2¹¹ = 1047043661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1047045809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523522854 + 523522855.

It is an arithmetic number, because the mean of its divisors is an integer number (523522855).

Almost surely, 2^1047045709 is an apocalyptic number.

It is an amenable number.

1047045709 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047045709 is an equidigital number, since it uses as much as digits as its factorization.

1047045709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 1047045709 is about 32358.0856819435. The cubic root of 1047045709 is about 1015.4422135796.

The spelling of 1047045709 in words is "one billion, forty-seven million, forty-five thousand, seven hundred nine".