130256287 has 8 divisors (see below), whose sum is σ = 149044896. Its totient is φ = 111512832.

The previous prime is 130256263. The next prime is 130256311. The reversal of 130256287 is 782652031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (130256263) and next prime (130256311).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130256287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130256237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4858 + ... + 16855.

It is an arithmetic number, because the mean of its divisors is an integer number (18630612).

Almost surely, 2^130256287 is an apocalyptic number.

130256287 is a deficient number, since it is larger than the sum of its proper divisors (18788609).

130256287 is an equidigital number, since it uses as much as digits as its factorization.

130256287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22577.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 130256287 is about 11412.9876456605. The cubic root of 130256287 is about 506.9123802902.

The spelling of 130256287 in words is "one hundred thirty million, two hundred fifty-six thousand, two hundred eighty-seven".