1103861 has 8 divisors (see below), whose sum is σ = 1275264. Its totient is φ = 944320.

The previous prime is 1103857. The next prime is 1103863. The reversal of 1103861 is 1683011.

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 1103861 - 2² = 1103857 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103863) 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, 2765 + ... + 3138.

It is an arithmetic number, because the mean of its divisors is an integer number (159408).

2^1103861 is an apocalyptic number.

1103861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1103861 is a deficient number, since it is larger than the sum of its proper divisors (171403).

1103861 is a wasteful number, since it uses less digits than its factorization.

1103861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5931.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1103861 is about 1050.6478953484. The cubic root of 1103861 is about 103.3486472852.

Adding to 1103861 its reverse (1683011), we get a palindrome (2786872).

The spelling of 1103861 in words is "one million, one hundred three thousand, eight hundred sixty-one".