130435221 has 16 divisors (see below), whose sum is σ = 200810624. Its totient is φ = 73764864.

The previous prime is 130435219. The next prime is 130435229. The reversal of 130435221 is 122534031.

It is not a de Polignac number, because 130435221 - 2¹ = 130435219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130435229) 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 15 ways as a sum of consecutive naturals, for example, 29980 + ... + 34053.

It is an arithmetic number, because the mean of its divisors is an integer number (12550664).

Almost surely, 2^130435221 is an apocalyptic number.

It is an amenable number.

130435221 is a deficient number, since it is larger than the sum of its proper divisors (70375403).

130435221 is an equidigital number, since it uses as much as digits as its factorization.

130435221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64140.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 130435221 is about 11420.8240070496. The cubic root of 130435221 is about 507.1443904810.

Adding to 130435221 its reverse (122534031), we get a palindrome (252969252).

The spelling of 130435221 in words is "one hundred thirty million, four hundred thirty-five thousand, two hundred twenty-one".