1316403 has 12 divisors (see below), whose sum is σ = 2074488. Its totient is φ = 797760.

The previous prime is 1316401. The next prime is 1316407. The reversal of 1316403 is 3046131.

It is not a de Polignac number, because 1316403 - 2¹ = 1316401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1316401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6550 + ... + 6747.

It is an arithmetic number, because the mean of its divisors is an integer number (172874).

2^1316403 is an apocalyptic number.

1316403 is a deficient number, since it is larger than the sum of its proper divisors (758085).

1316403 is a wasteful number, since it uses less digits than its factorization.

1316403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13314 (or 13311 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1316403 is about 1147.3460681067. The cubic root of 1316403 is about 109.5963997521.

The spelling of 1316403 in words is "one million, three hundred sixteen thousand, four hundred three".