130452309 has 64 divisors (see below), whose sum is σ = 226508800. Its totient is φ = 73483200.

The previous prime is 130452299. The next prime is 130452341. The reversal of 130452309 is 903254031.

130452309 is a `hidden beast` number, since 1 + 304 + 52 + 309 = 666.

It is not a de Polignac number, because 130452309 - 2⁵ = 130452277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130452349) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 206424 + ... + 207054.

It is an arithmetic number, because the mean of its divisors is an integer number (3539200).

Almost surely, 2^130452309 is an apocalyptic number.

130452309 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

130452309 is a deficient number, since it is larger than the sum of its proper divisors (96056491).

130452309 is a wasteful number, since it uses less digits than its factorization.

130452309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 130452309 is about 11421.5720896906. The cubic root of 130452309 is about 507.1665360969.

The spelling of 130452309 in words is "one hundred thirty million, four hundred fifty-two thousand, three hundred nine".