1264216203 has 24 divisors (see below), whose sum is σ = 1943675136. Its totient is φ = 789062400.

The previous prime is 1264216201. The next prime is 1264216207. The reversal of 1264216203 is 3026124621.

1264216203 is a `hidden beast` number, since 1 + 2 + 642 + 16 + 2 + 0 + 3 = 666.

It is not a de Polignac number, because 1264216203 - 2¹ = 1264216201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1264216201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7593 + ... + 50853.

It is an arithmetic number, because the mean of its divisors is an integer number (80986464).

Almost surely, 2^1264216203 is an apocalyptic number.

1264216203 is a deficient number, since it is larger than the sum of its proper divisors (679458933).

1264216203 is a wasteful number, since it uses less digits than its factorization.

1264216203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43475 (or 43472 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1264216203 is about 35555.8181314957. The cubic root of 1264216203 is about 1081.2856782284.

The spelling of 1264216203 in words is "one billion, two hundred sixty-four million, two hundred sixteen thousand, two hundred three".