130443146 has 8 divisors (see below), whose sum is σ = 195779460. Its totient is φ = 65183328.

The previous prime is 130443139. The next prime is 130443149. The reversal of 130443146 is 641344031.

It can be written as a sum of positive squares in 2 ways, for example, as 110986225 + 19456921 = 10535^2 + 4411^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (130443149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14651 + ... + 21806.

Almost surely, 2^130443146 is an apocalyptic number.

130443146 is a deficient number, since it is larger than the sum of its proper divisors (65336314).

130443146 is a wasteful number, since it uses less digits than its factorization.

130443146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38248.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 130443146 is about 11421.1709557295. The cubic root of 130443146 is about 507.1546613211.

Adding to 130443146 its reverse (641344031), we get a palindrome (771787177).

The spelling of 130443146 in words is "one hundred thirty million, four hundred forty-three thousand, one hundred forty-six".