130623565 has 8 divisors (see below), whose sum is σ = 156896280. Its totient is φ = 104400192.

The previous prime is 130623539. The next prime is 130623583. The reversal of 130623565 is 565326031.

It can be written as a sum of positive squares in 4 ways, for example, as 17690436 + 112933129 = 4206^2 + 10627^2 .

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 130623565 - 2⁵ = 130623533 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 6234 + ... + 17323.

It is an arithmetic number, because the mean of its divisors is an integer number (19612035).

Almost surely, 2^130623565 is an apocalyptic number.

It is an amenable number.

130623565 is a deficient number, since it is larger than the sum of its proper divisors (26272715).

130623565 is a wasteful number, since it uses less digits than its factorization.

130623565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24671.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 130623565 is about 11429.0666723053. The cubic root of 130623565 is about 507.3883728054.

Adding to 130623565 its reverse (565326031), we get a palindrome (695949596).

The spelling of 130623565 in words is "one hundred thirty million, six hundred twenty-three thousand, five hundred sixty-five".