130421216 has 48 divisors (see below), whose sum is σ = 268829568. Its totient is φ = 62208000.

The previous prime is 130421209. The next prime is 130421227. The reversal of 130421216 is 612124031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71516 + ... + 73316.

It is an arithmetic number, because the mean of its divisors is an integer number (5600616).

Almost surely, 2^130421216 is an apocalyptic number.

130421216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130421216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134414784).

130421216 is an abundant number, since it is smaller than the sum of its proper divisors (138408352).

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

130421216 is a wasteful number, since it uses less digits than its factorization.

130421216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915 (or 1907 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 130421216 is about 11420.2108561970. The cubic root of 130421216 is about 507.1262389129.

Adding to 130421216 its reverse (612124031), we get a palindrome (742545247).

The spelling of 130421216 in words is "one hundred thirty million, four hundred twenty-one thousand, two hundred sixteen".