1057845909 has 8 divisors (see below), whose sum is σ = 1410789600. Its totient is φ = 705066416.

The previous prime is 1057845907. The next prime is 1057845937. The reversal of 1057845909 is 9095487501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1057845909 - 2¹ = 1057845907 is a prime.

It is a super-2 number, since 2×1057845909² = 2238075934376072562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057845907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25134 + ... + 52415.

It is an arithmetic number, because the mean of its divisors is an integer number (176348700).

Almost surely, 2^1057845909 is an apocalyptic number.

It is an amenable number.

1057845909 is a deficient number, since it is larger than the sum of its proper divisors (352943691).

1057845909 is an equidigital number, since it uses as much as digits as its factorization.

1057845909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82099.

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 1057845909 is about 32524.5431789595. The cubic root of 1057845909 is about 1018.9216814606.

The spelling of 1057845909 in words is "one billion, fifty-seven million, eight hundred forty-five thousand, nine hundred nine".