247130565 has 32 divisors (see below), whose sum is σ = 436838400. Its totient is φ = 118297920.

The previous prime is 247130551. The next prime is 247130567. The reversal of 247130565 is 565031742.

It is not a de Polignac number, because 247130565 - 2¹² = 247126469 is a prime.

It is a super-2 number, since 2×247130565² = 122147032314438450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247130567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3556 + ... + 22514.

It is an arithmetic number, because the mean of its divisors is an integer number (13651200).

Almost surely, 2^247130565 is an apocalyptic number.

It is an amenable number.

247130565 is a deficient number, since it is larger than the sum of its proper divisors (189707835).

247130565 is a wasteful number, since it uses less digits than its factorization.

247130565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19057.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 247130565 is about 15720.3869227192. The cubic root of 247130565 is about 627.5410702049.

The spelling of 247130565 in words is "two hundred forty-seven million, one hundred thirty thousand, five hundred sixty-five".