1255244133 has 16 divisors (see below), whose sum is σ = 1966257216. Its totient is φ = 702234240.

The previous prime is 1255244131. The next prime is 1255244143. The reversal of 1255244133 is 3314425521.

It is not a de Polignac number, because 1255244133 - 2¹ = 1255244131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255244133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255244131) 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 15 ways as a sum of consecutive naturals, for example, 1462560 + ... + 1463417.

It is an arithmetic number, because the mean of its divisors is an integer number (122891076).

Almost surely, 2^1255244133 is an apocalyptic number.

1255244133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1255244133 is a deficient number, since it is larger than the sum of its proper divisors (711013083).

1255244133 is a wasteful number, since it uses less digits than its factorization.

1255244133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926004.

The product of its digits is 14400, while the sum is 30.

The square root of 1255244133 is about 35429.4246778014. The cubic root of 1255244133 is about 1078.7216622231.

Adding to 1255244133 its reverse (3314425521), we get a palindrome (4569669654).

The spelling of 1255244133 in words is "one billion, two hundred fifty-five million, two hundred forty-four thousand, one hundred thirty-three".