1006103 has 4 divisors (see below), whose sum is σ = 1149840. Its totient is φ = 862368.

The previous prime is 1006091. The next prime is 1006123. The reversal of 1006103 is 3016001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3016001 = 41 ⋅73561.

It is a cyclic number.

It is not a de Polignac number, because 1006103 - 2⁴ = 1006087 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 (1006123) 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, 71858 + ... + 71871.

It is an arithmetic number, because the mean of its divisors is an integer number (287460).

2^1006103 is an apocalyptic number.

1006103 is a deficient number, since it is larger than the sum of its proper divisors (143737).

1006103 is an equidigital number, since it uses as much as digits as its factorization.

1006103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143736.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1006103 is about 1003.0468583272. The cubic root of 1006103 is about 100.2030208796.

The spelling of 1006103 in words is "one million, six thousand, one hundred three".