130420232 has 8 divisors (see below), whose sum is σ = 244537950. Its totient is φ = 65210112.

The previous prime is 130420229. The next prime is 130420261. The reversal of 130420232 is 232024031.

It can be written as a sum of positive squares in only one way, i.e., 77334436 + 53085796 = 8794^2 + 7286^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 130420232.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8151257 + ... + 8151272.

Almost surely, 2^130420232 is an apocalyptic number.

It is an amenable number.

130420232 is a deficient number, since it is larger than the sum of its proper divisors (114117718).

130420232 is a wasteful number, since it uses less digits than its factorization.

130420232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16302535 (or 16302531 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 130420232 is about 11420.1677745995. The cubic root of 130420232 is about 507.1249635235.

Adding to 130420232 its reverse (232024031), we get a palindrome (362444263).

The spelling of 130420232 in words is "one hundred thirty million, four hundred twenty thousand, two hundred thirty-two".