1255141140 has 192 divisors, whose sum is σ = 4079738880. Its totient is φ = 285120000.

The previous prime is 1255141133. The next prime is 1255141163. The reversal of 1255141140 is 411415521.

It is a self number, because there is not a number n which added to its sum of digits gives 1255141140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1266045 + ... + 1267035.

It is an arithmetic number, because the mean of its divisors is an integer number (21248640).

Almost surely, 2^1255141140 is an apocalyptic number.

1255141140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255141140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2039869440).

1255141140 is an abundant number, since it is smaller than the sum of its proper divisors (2824597740).

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

1255141140 is a wasteful number, since it uses less digits than its factorization.

1255141140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 1255141140 is about 35427.9711527488. The cubic root of 1255141140 is about 1078.6921583160.

Adding to 1255141140 its reverse (411415521), we get a palindrome (1666556661).

The spelling of 1255141140 in words is "one billion, two hundred fifty-five million, one hundred forty-one thousand, one hundred forty".