1205103 has 8 divisors (see below), whose sum is σ = 1619968. Its totient is φ = 796824.

The previous prime is 1205101. The next prime is 1205117. The reversal of 1205103 is 3015021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1205103 - 2¹ = 1205101 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 (1205101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1201 + ... + 1962.

It is an arithmetic number, because the mean of its divisors is an integer number (202496).

2^1205103 is an apocalyptic number.

1205103 is a deficient number, since it is larger than the sum of its proper divisors (414865).

1205103 is a wasteful number, since it uses less digits than its factorization.

1205103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3293.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 1205103 is about 1097.7718342169. The cubic root of 1205103 is about 106.4162757528.

The spelling of 1205103 in words is "one million, two hundred five thousand, one hundred three".