1255310144 has 84 divisors (see below), whose sum is σ = 2756813892. Its totient is φ = 566691840.

The previous prime is 1255310143. The next prime is 1255310149. The reversal of 1255310144 is 4410135521.

It can be written as a sum of positive squares in 2 ways, for example, as 581388544 + 673921600 = 24112^2 + 25960^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255310143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1339244 + ... + 1340180.

It is an arithmetic number, because the mean of its divisors is an integer number (32819213).

Almost surely, 2^1255310144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255310144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1378406946).

1255310144 is an abundant number, since it is smaller than the sum of its proper divisors (1501503748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255310144 is a wasteful number, since it uses less digits than its factorization.

1255310144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1255310144 is about 35430.3562499730. The cubic root of 1255310144 is about 1078.7405712267.

Adding to 1255310144 its reverse (4410135521), we get a palindrome (5665445665).

The spelling of 1255310144 in words is "one billion, two hundred fifty-five million, three hundred ten thousand, one hundred forty-four".