1045876709 has 4 divisors (see below), whose sum is σ = 1046218380. Its totient is φ = 1045535040.

The previous prime is 1045876649. The next prime is 1045876739. The reversal of 1045876709 is 9076785401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 903002500 + 142874209 = 30050^2 + 11953^2 .

It is a cyclic number.

It is not a de Polignac number, because 1045876709 - 2²⁴ = 1029099493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045876739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166202 + ... + 172379.

It is an arithmetic number, because the mean of its divisors is an integer number (261554595).

Almost surely, 2^1045876709 is an apocalyptic number.

It is an amenable number.

1045876709 is a deficient number, since it is larger than the sum of its proper divisors (341671).

1045876709 is an equidigital number, since it uses as much as digits as its factorization.

1045876709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341670.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 1045876709 is about 32340.0171459447. The cubic root of 1045876709 is about 1015.0641676857.

The spelling of 1045876709 in words is "one billion, forty-five million, eight hundred seventy-six thousand, seven hundred nine".