1618103 has 4 divisors (see below), whose sum is σ = 1622880. Its totient is φ = 1613328.

The previous prime is 1618093. The next prime is 1618129. The reversal of 1618103 is 3018161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1618103 - 2⁴ = 1618087 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1618153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838 + ... + 2571.

It is an arithmetic number, because the mean of its divisors is an integer number (405720).

2^1618103 is an apocalyptic number.

1618103 is a deficient number, since it is larger than the sum of its proper divisors (4777).

1618103 is an equidigital number, since it uses as much as digits as its factorization.

1618103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776.

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

The square root of 1618103 is about 1272.0467758695. The cubic root of 1618103 is about 117.4001687129.

The spelling of 1618103 in words is "one million, six hundred eighteen thousand, one hundred three".