130281587 has 4 divisors (see below), whose sum is σ = 130381680. Its totient is φ = 130181496.

The previous prime is 130281581. The next prime is 130281589. The reversal of 130281587 is 785182031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130281587 - 2⁸ = 130281331 is a prime.

It is a super-2 number, since 2×130281587² = 33946583822477138, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (130281581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48068 + ... + 50705.

It is an arithmetic number, because the mean of its divisors is an integer number (32595420).

Almost surely, 2^130281587 is an apocalyptic number.

130281587 is a deficient number, since it is larger than the sum of its proper divisors (100093).

130281587 is an equidigital number, since it uses as much as digits as its factorization.

130281587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100092.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 130281587 is about 11414.0959782192. The cubic root of 130281587 is about 506.9451977796.

The spelling of 130281587 in words is "one hundred thirty million, two hundred eighty-one thousand, five hundred eighty-seven".