1045857 has 8 divisors (see below), whose sum is σ = 1476576. Its totient is φ = 656192.

The previous prime is 1045841. The next prime is 1045859. The reversal of 1045857 is 7585401.

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 1045857 - 2⁴ = 1045841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1045859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10203 + ... + 10304.

It is an arithmetic number, because the mean of its divisors is an integer number (184572).

2^1045857 is an apocalyptic number.

1045857 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1045857 is a deficient number, since it is larger than the sum of its proper divisors (430719).

1045857 is a wasteful number, since it uses less digits than its factorization.

1045857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20527.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 1045857 is about 1022.6715015096. The cubic root of 1045857 is about 101.5057791528.

The spelling of 1045857 in words is "one million, forty-five thousand, eight hundred fifty-seven".