1648103 has 4 divisors (see below), whose sum is σ = 1664208. Its totient is φ = 1632000.

The previous prime is 1648081. The next prime is 1648181. The reversal of 1648103 is 3018461.

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 1648103 - 2⁶ = 1648039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1641103) 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, 7898 + ... + 8103.

It is an arithmetic number, because the mean of its divisors is an integer number (416052).

2^1648103 is an apocalyptic number.

1648103 is a deficient number, since it is larger than the sum of its proper divisors (16105).

1648103 is a wasteful number, since it uses less digits than its factorization.

1648103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16104.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1648103 is about 1283.7846392600. The cubic root of 1648103 is about 118.1212724298.

It can be divided in two parts, 1648 and 103, that multiplied together give a square (169744 = 412²).

The spelling of 1648103 in words is "one million, six hundred forty-eight thousand, one hundred three".