130612306 has 32 divisors (see below), whose sum is σ = 221538240. Its totient is φ = 57235200.

The previous prime is 130612301. The next prime is 130612373. The reversal of 130612306 is 603216031.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (130612301) 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, 79465 + ... + 81091.

It is an arithmetic number, because the mean of its divisors is an integer number (6923070).

Almost surely, 2^130612306 is an apocalyptic number.

130612306 is a deficient number, since it is larger than the sum of its proper divisors (90925934).

130612306 is a wasteful number, since it uses less digits than its factorization.

130612306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 130612306 is about 11428.5741017854. The cubic root of 130612306 is about 507.3737944001.

Adding to 130612306 its reverse (603216031), we get a palindrome (733828337).

The spelling of 130612306 in words is "one hundred thirty million, six hundred twelve thousand, three hundred six".