1113857 has 4 divisors (see below), whose sum is σ = 1179396. Its totient is φ = 1048320.

The previous prime is 1113809. The next prime is 1113859. The reversal of 1113857 is 7583111.

1113857 is nontrivially palindromic in base 16.

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 758641 + 355216 = 871^2 + 596^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113857 - 2⁶ = 1113793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113859) 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, 32744 + ... + 32777.

It is an arithmetic number, because the mean of its divisors is an integer number (294849).

2^1113857 is an apocalyptic number.

1113857 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1113857 is a deficient number, since it is larger than the sum of its proper divisors (65539).

1113857 is an equidigital number, since it uses as much as digits as its factorization.

1113857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65538.

The product of its digits is 840, while the sum is 26.

The square root of 1113857 is about 1055.3942391353. The cubic root of 1113857 is about 103.6596678289.

Adding to 1113857 its reverse (7583111), we get a palindrome (8696968).

The spelling of 1113857 in words is "one million, one hundred thirteen thousand, eight hundred fifty-seven".