130439489 has 8 divisors (see below), whose sum is σ = 132115368. Its totient is φ = 128770560.

The previous prime is 130439483. The next prime is 130439497. The reversal of 130439489 is 984934031.

It can be written as a sum of positive squares in 4 ways, for example, as 47720464 + 82719025 = 6908^2 + 9095^2 .

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 130439489 - 2⁴ = 130439473 is a prime.

It is a super-2 number, since 2×130439489² = 34028920581162242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130439483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43259 + ... + 46175.

It is an arithmetic number, because the mean of its divisors is an integer number (16514421).

Almost surely, 2^130439489 is an apocalyptic number.

It is an amenable number.

130439489 is a deficient number, since it is larger than the sum of its proper divisors (1675879).

130439489 is an equidigital number, since it uses as much as digits as its factorization.

130439489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 130439489 is about 11421.0108571877. The cubic root of 130439489 is about 507.1499218823.

The spelling of 130439489 in words is "one hundred thirty million, four hundred thirty-nine thousand, four hundred eighty-nine".