130243256 has 128 divisors (see below), whose sum is σ = 313709760. Its totient is φ = 49766400.

The previous prime is 130243249. The next prime is 130243261. The reversal of 130243256 is 652342031.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 719486 + ... + 719666.

Almost surely, 2^130243256 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 130243256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156854880).

130243256 is an abundant number, since it is smaller than the sum of its proper divisors (183466504).

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

130243256 is a wasteful number, since it uses less digits than its factorization.

130243256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 130243256 is about 11412.4167466843. The cubic root of 130243256 is about 506.8954756794.

Adding to 130243256 its reverse (652342031), we get a palindrome (782585287).

It can be divided in two parts, 13024 and 3256, that multiplied together give a square (42406144 = 6512²).

The spelling of 130243256 in words is "one hundred thirty million, two hundred forty-three thousand, two hundred fifty-six".