229130681 has 8 divisors (see below), whose sum is σ = 247493064. Its totient is φ = 210873600.

The previous prime is 229130651. The next prime is 229130683. The reversal of 229130681 is 186031922.

It can be written as a sum of positive squares in 4 ways, for example, as 22231225 + 206899456 = 4715^2 + 14384^2 .

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 229130681 - 2¹⁸ = 228868537 is a prime.

It is a super-2 number, since 2×229130681² = 105001737951047522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (229130683) by changing a digit.

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, 21770 + ... + 30531.

It is an arithmetic number, because the mean of its divisors is an integer number (30936633).

Almost surely, 2^229130681 is an apocalyptic number.

It is an amenable number.

229130681 is a deficient number, since it is larger than the sum of its proper divisors (18362383).

229130681 is a wasteful number, since it uses less digits than its factorization.

229130681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52651.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 229130681 is about 15137.0631563722. The cubic root of 229130681 is about 611.9196722358.

The spelling of 229130681 in words is "two hundred twenty-nine million, one hundred thirty thousand, six hundred eighty-one".