130421532 has 12 divisors (see below), whose sum is σ = 304316936. Its totient is φ = 43473840.

The previous prime is 130421531. The next prime is 130421573. The reversal of 130421532 is 235124031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 130421499 and 130421508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130421531) 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 3 ways as a sum of consecutive naturals, for example, 5434219 + ... + 5434242.

Almost surely, 2^130421532 is an apocalyptic number.

130421532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130421532 is an abundant number, since it is smaller than the sum of its proper divisors (173895404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130421532 is a wasteful number, since it uses less digits than its factorization.

130421532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10868468 (or 10868466 counting only the distinct ones).

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

The square root of 130421532 is about 11420.2246913097. The cubic root of 130421532 is about 507.1266484877.

Adding to 130421532 its reverse (235124031), we get a palindrome (365545563).

The spelling of 130421532 in words is "one hundred thirty million, four hundred twenty-one thousand, five hundred thirty-two".