1275641203 has 16 divisors (see below), whose sum is σ = 1352862720. Its totient is φ = 1200348864.

The previous prime is 1275641161. The next prime is 1275641239. The reversal of 1275641203 is 3021465721.

It is a cyclic number.

It is not a de Polignac number, because 1275641203 - 2¹³ = 1275633011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1275641273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 567600 + ... + 569842.

It is an arithmetic number, because the mean of its divisors is an integer number (84553920).

Almost surely, 2^1275641203 is an apocalyptic number.

1275641203 is a deficient number, since it is larger than the sum of its proper divisors (77221517).

1275641203 is a wasteful number, since it uses less digits than its factorization.

1275641203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 1275641203 is about 35716.1196520563. The cubic root of 1275641203 is about 1084.5331871678.

The spelling of 1275641203 in words is "one billion, two hundred seventy-five million, six hundred forty-one thousand, two hundred three".