1340203 has 4 divisors (see below), whose sum is σ = 1410760. Its totient is φ = 1269648.

The previous prime is 1340179. The next prime is 1340221. The reversal of 1340203 is 3020431.

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 1340203 - 2⁹ = 1339691 is a prime.

It is a super-2 number, since 2×1340203² = 3592288162418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35250 + ... + 35287.

It is an arithmetic number, because the mean of its divisors is an integer number (352690).

2^1340203 is an apocalyptic number.

1340203 is a deficient number, since it is larger than the sum of its proper divisors (70557).

1340203 is an equidigital number, since it uses as much as digits as its factorization.

1340203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70556.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1340203 is about 1157.6713696037. The cubic root of 1340203 is about 110.2529440822.

Adding to 1340203 its reverse (3020431), we get a palindrome (4360634).

The spelling of 1340203 in words is "one million, three hundred forty thousand, two hundred three".