1315203 has 4 divisors (see below), whose sum is σ = 1753608. Its totient is φ = 876800.

The previous prime is 1315187. The next prime is 1315211. The reversal of 1315203 is 3025131.

It is a happy number.

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 1315203 - 2⁴ = 1315187 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1315213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219198 + ... + 219203.

It is an arithmetic number, because the mean of its divisors is an integer number (438402).

2^1315203 is an apocalyptic number.

1315203 is a deficient number, since it is larger than the sum of its proper divisors (438405).

1315203 is an equidigital number, since it uses as much as digits as its factorization.

1315203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438404.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1315203 is about 1146.8230029085. The cubic root of 1315203 is about 109.5630878504.

The spelling of 1315203 in words is "one million, three hundred fifteen thousand, two hundred three".