1045709 has 6 divisors (see below), whose sum is σ = 1216494. Its totient is φ = 896280.

The previous prime is 1045691. The next prime is 1045727. The reversal of 1045709 is 9075401.

It is an interprime number because it is at equal distance from previous prime (1045691) and next prime (1045727).

It can be written as a sum of positive squares in only one way, i.e., 1044484 + 1225 = 1022^2 + 35^2 .

It is not a de Polignac number, because 1045709 - 2¹⁶ = 980173 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10622 + ... + 10719.

It is an arithmetic number, because the mean of its divisors is an integer number (202749).

2^1045709 is an apocalyptic number.

It is an amenable number.

1045709 is a deficient number, since it is larger than the sum of its proper divisors (170785).

1045709 is an equidigital number, since it uses as much as digits as its factorization.

1045709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21355 (or 21348 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1045709 is about 1022.5991394481. The cubic root of 1045709 is about 101.5009908742.

The spelling of 1045709 in words is "one million, forty-five thousand, seven hundred nine".