130221346 has 8 divisors (see below), whose sum is σ = 196344684. Its totient is φ = 64773120.

The previous prime is 130221341. The next prime is 130221353. The reversal of 130221346 is 643122031.

It can be written as a sum of positive squares in 2 ways, for example, as 124880625 + 5340721 = 11175^2 + 2311^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×130221346³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (130221341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168295 + ... + 169066.

Almost surely, 2^130221346 is an apocalyptic number.

130221346 is a deficient number, since it is larger than the sum of its proper divisors (66123338).

130221346 is a wasteful number, since it uses less digits than its factorization.

130221346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337556.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 130221346 is about 11411.4567869313. The cubic root of 130221346 is about 506.8670501443.

Adding to 130221346 its reverse (643122031), we get a palindrome (773343377).

The spelling of 130221346 in words is "one hundred thirty million, two hundred twenty-one thousand, three hundred forty-six".