1421203 has 8 divisors (see below), whose sum is σ = 1680480. Its totient is φ = 1176000.

The previous prime is 1421191. The next prime is 1421213. The reversal of 1421203 is 3021241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1421203 - 2¹⁷ = 1290131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3298 + ... + 3703.

It is an arithmetic number, because the mean of its divisors is an integer number (210060).

2^1421203 is an apocalyptic number.

1421203 is a deficient number, since it is larger than the sum of its proper divisors (259277).

1421203 is an equidigital number, since it uses as much as digits as its factorization.

1421203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7037.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1421203 is about 1192.1421895059. The cubic root of 1421203 is about 112.4308183710.

Adding to 1421203 its reverse (3021241), we get a palindrome (4442444).

The spelling of 1421203 in words is "one million, four hundred twenty-one thousand, two hundred three".