1100857 has 2 divisors, whose sum is σ = 1100858. Its totient is φ = 1100856.

The previous prime is 1100851. The next prime is 1100887. The reversal of 1100857 is 7580011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 826281 + 274576 = 909^2 + 524^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100857 is a prime.

It is a super-3 number, since 3×1100857³ = 4002340002933368379, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1100851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550428 + 550429.

It is an arithmetic number, because the mean of its divisors is an integer number (550429).

2^1100857 is an apocalyptic number.

It is an amenable number.

1100857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100857 is an equidigital number, since it uses as much as digits as its factorization.

1100857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 1100857 is about 1049.2173273445. The cubic root of 1100857 is about 103.2548125885.

Adding to 1100857 its reverse (7580011), we get a palindrome (8680868).

The spelling of 1100857 in words is "one million, one hundred thousand, eight hundred fifty-seven".