1265203 has 4 divisors (see below), whose sum is σ = 1306048. Its totient is φ = 1224360.

The previous prime is 1265197. The next prime is 1265233. The reversal of 1265203 is 3025621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3025621 = 79 ⋅38299.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1265203 is a prime.

It is a Duffinian number.

1265203 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1265233) 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, 20376 + ... + 20437.

It is an arithmetic number, because the mean of its divisors is an integer number (326512).

2^1265203 is an apocalyptic number.

1265203 is a deficient number, since it is larger than the sum of its proper divisors (40845).

1265203 is an equidigital number, since it uses as much as digits as its factorization.

1265203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40844.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1265203 is about 1124.8124288076. The cubic root of 1265203 is about 108.1566941291.

It can be divided in two parts, 126 and 5203, that added together give a square (5329 = 73²).

The spelling of 1265203 in words is "one million, two hundred sixty-five thousand, two hundred three".