232130146 has 4 divisors (see below), whose sum is σ = 348195222. Its totient is φ = 116065072.

The previous prime is 232130141. The next prime is 232130149. The reversal of 232130146 is 641031232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 136305625 + 95824521 = 11675^2 + 9789^2 .

It is not an unprimeable number, because it can be changed into a prime (232130141) 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 as a sum of consecutive naturals, namely, 58032535 + ... + 58032538.

Almost surely, 2^232130146 is an apocalyptic number.

232130146 is a deficient number, since it is larger than the sum of its proper divisors (116065076).

232130146 is a wasteful number, since it uses less digits than its factorization.

232130146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116065075.

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

The square root of 232130146 is about 15235.8178644929. The cubic root of 232130146 is about 614.5782430109.

Adding to 232130146 its reverse (641031232), we get a palindrome (873161378).

The spelling of 232130146 in words is "two hundred thirty-two million, one hundred thirty thousand, one hundred forty-six".