1580103 has 18 divisors (see below), whose sum is σ = 2655744. Its totient is φ = 902664.

The previous prime is 1580087. The next prime is 1580107. The reversal of 1580103 is 3010851.

It is a happy number.

It is not a de Polignac number, because 1580103 - 2⁴ = 1580087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1580107) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1351 + ... + 2232.

2^1580103 is an apocalyptic number.

1580103 is a deficient number, since it is larger than the sum of its proper divisors (1075641).

1580103 is a wasteful number, since it uses less digits than its factorization.

1580103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603 (or 3593 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1580103 is about 1257.0214795301. The cubic root of 1580103 is about 116.4738593132.

Adding to 1580103 its reverse (3010851), we get a palindrome (4590954).

The spelling of 1580103 in words is "one million, five hundred eighty thousand, one hundred three".