130287945 has 8 divisors (see below), whose sum is σ = 208460736. Its totient is φ = 69486896.

The previous prime is 130287943. The next prime is 130287977. The reversal of 130287945 is 549782031.

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

It is a cyclic number.

It is not a de Polignac number, because 130287945 - 2¹ = 130287943 is a prime.

It is a super-2 number, since 2×130287945² = 33949897224646050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130287943) 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 7 ways as a sum of consecutive naturals, for example, 4342917 + ... + 4342946.

It is an arithmetic number, because the mean of its divisors is an integer number (26057592).

Almost surely, 2^130287945 is an apocalyptic number.

130287945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130287945 is a deficient number, since it is larger than the sum of its proper divisors (78172791).

130287945 is an equidigital number, since it uses as much as digits as its factorization.

130287945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685871.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 130287945 is about 11414.3744900892. The cubic root of 130287945 is about 506.9534442894.

The spelling of 130287945 in words is "one hundred thirty million, two hundred eighty-seven thousand, nine hundred forty-five".