1275426203 has 4 divisors (see below), whose sum is σ = 1275751680. Its totient is φ = 1275100728.

The previous prime is 1275426193. The next prime is 1275426227. The reversal of 1275426203 is 3026245721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3026245721 = 49117 ⋅61613.

It is a cyclic number.

It is not a de Polignac number, because 1275426203 - 2²⁶ = 1208317339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1275426203.

It is not an unprimeable number, because it can be changed into a prime (1275486203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156788 + ... + 164721.

It is an arithmetic number, because the mean of its divisors is an integer number (318937920).

Almost surely, 2^1275426203 is an apocalyptic number.

1275426203 is a deficient number, since it is larger than the sum of its proper divisors (325477).

1275426203 is an equidigital number, since it uses as much as digits as its factorization.

1275426203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325476.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 1275426203 is about 35713.1096797801. The cubic root of 1275426203 is about 1084.4722536974.

The spelling of 1275426203 in words is "one billion, two hundred seventy-five million, four hundred twenty-six thousand, two hundred three".