1260668133 has 24 divisors (see below), whose sum is σ = 1929447000. Its totient is φ = 790447104.

The previous prime is 1260668131. The next prime is 1260668141. The reversal of 1260668133 is 3318660621.

1260668133 is a `hidden beast` number, since 12 + 606 + 6 + 8 + 1 + 33 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1979649 + 1258688484 = 1407^2 + 35478^2 .

It is not a de Polignac number, because 1260668133 - 2¹ = 1260668131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260668131) 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 23 ways as a sum of consecutive naturals, for example, 363793 + ... + 367241.

It is an arithmetic number, because the mean of its divisors is an integer number (80393625).

Almost surely, 2^1260668133 is an apocalyptic number.

It is an amenable number.

1260668133 is a deficient number, since it is larger than the sum of its proper divisors (668778867).

1260668133 is a wasteful number, since it uses less digits than its factorization.

1260668133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5861 (or 5858 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1260668133 is about 35505.8887087762. Note that the first 3 decimals coincide. The cubic root of 1260668133 is about 1080.2731742105.

The spelling of 1260668133 in words is "one billion, two hundred sixty million, six hundred sixty-eight thousand, one hundred thirty-three".