1051857 has 12 divisors (see below), whose sum is σ = 1541124. Its totient is φ = 691200.

The previous prime is 1051849. The next prime is 1051879. The reversal of 1051857 is 7581501.

It can be written as a sum of positive squares in 2 ways, for example, as 904401 + 147456 = 951^2 + 384^2 .

It is not a de Polignac number, because 1051857 - 2³ = 1051849 is a prime.

It is a super-3 number, since 3×1051857³ = 3491333689554359379, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1051857.

It is not an unprimeable number, because it can be changed into a prime (1051847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144 + ... + 1457.

It is an arithmetic number, because the mean of its divisors is an integer number (128427).

2^1051857 is an apocalyptic number.

It is an amenable number.

1051857 is a deficient number, since it is larger than the sum of its proper divisors (489267).

1051857 is a wasteful number, since it uses less digits than its factorization.

1051857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 1051857 is about 1025.6007995317. The cubic root of 1051857 is about 101.6995193777.

The spelling of 1051857 in words is "one million, fifty-one thousand, eight hundred fifty-seven".