130620805 has 16 divisors (see below), whose sum is σ = 179642880. Its totient is φ = 89315712.

The previous prime is 130620803. The next prime is 130620811. The reversal of 130620805 is 508026031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 130620805 - 2¹ = 130620803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130620805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130620803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7761 + ... + 17929.

It is an arithmetic number, because the mean of its divisors is an integer number (11227680).

Almost surely, 2^130620805 is an apocalyptic number.

It is an amenable number.

130620805 is a deficient number, since it is larger than the sum of its proper divisors (49022075).

130620805 is a wasteful number, since it uses less digits than its factorization.

130620805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10548.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 130620805 is about 11428.9459268998. The cubic root of 130620805 is about 507.3847991731.

Adding to 130620805 its reverse (508026031), we get a palindrome (638646836).

The spelling of 130620805 in words is "one hundred thirty million, six hundred twenty thousand, eight hundred five".