130228905 has 16 divisors (see below), whose sum is σ = 211477824. Its totient is φ = 68418240.

The previous prime is 130228877. The next prime is 130228913. The reversal of 130228905 is 509822031.

It is a happy number.

It is not a de Polignac number, because 130228905 - 2⁸ = 130228649 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 63786 + ... + 65795.

It is an arithmetic number, because the mean of its divisors is an integer number (13217364).

Almost surely, 2^130228905 is an apocalyptic number.

130228905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130228905 is a deficient number, since it is larger than the sum of its proper divisors (81248919).

130228905 is a wasteful number, since it uses less digits than its factorization.

130228905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129656.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 130228905 is about 11411.7879843607. The cubic root of 130228905 is about 506.8768573790.

The spelling of 130228905 in words is "one hundred thirty million, two hundred twenty-eight thousand, nine hundred five".