1254811133 has 2 divisors, whose sum is σ = 1254811134. Its totient is φ = 1254811132.

The previous prime is 1254811043. The next prime is 1254811139. The reversal of 1254811133 is 3311184521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1094484889 + 160326244 = 33083^2 + 12662^2 .

It is a cyclic number.

It is not a de Polignac number, because 1254811133 - 2¹⁸ = 1254548989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1254811096 and 1254811105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1254811139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627405566 + 627405567.

It is an arithmetic number, because the mean of its divisors is an integer number (627405567).

Almost surely, 2^1254811133 is an apocalyptic number.

It is an amenable number.

1254811133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1254811133 is an equidigital number, since it uses as much as digits as its factorization.

1254811133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 29.

The square root of 1254811133 is about 35423.3134108033. The cubic root of 1254811133 is about 1078.5976119327.

Adding to 1254811133 its reverse (3311184521), we get a palindrome (4565995654).

The spelling of 1254811133 in words is "one billion, two hundred fifty-four million, eight hundred eleven thousand, one hundred thirty-three".