130824247 has 4 divisors (see below), whose sum is σ = 135044416. Its totient is φ = 126604080.

The previous prime is 130824233. The next prime is 130824257. The reversal of 130824247 is 742428031.

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 130824247 - 2¹⁹ = 130299959 is a prime.

It is a super-2 number, since 2×130824247² = 34229967206234018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 4220137 = 130824247 / (1 + 3 + 0 + 8 + 2 + 4 + 2 + 4 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130824217) 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, 2110038 + ... + 2110099.

It is an arithmetic number, because the mean of its divisors is an integer number (33761104).

Almost surely, 2^130824247 is an apocalyptic number.

130824247 is a deficient number, since it is larger than the sum of its proper divisors (4220169).

130824247 is an equidigital number, since it uses as much as digits as its factorization.

130824247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220168.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 130824247 is about 11437.8427598914. The cubic root of 130824247 is about 507.6480799332.

The spelling of 130824247 in words is "one hundred thirty million, eight hundred twenty-four thousand, two hundred forty-seven".