130521400 has 24 divisors (see below), whose sum is σ = 303462720. Its totient is φ = 52208480.

The previous prime is 130521379. The next prime is 130521451. The reversal of 130521400 is 4125031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 326104 + ... + 326503.

It is an arithmetic number, because the mean of its divisors is an integer number (12644280).

Almost surely, 2^130521400 is an apocalyptic number.

130521400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130521400 is an abundant number, since it is smaller than the sum of its proper divisors (172941320).

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

130521400 is a wasteful number, since it uses less digits than its factorization.

130521400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652623 (or 652614 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 130521400 is about 11424.5962729542. The cubic root of 130521400 is about 507.2560565740.

Adding to 130521400 its reverse (4125031), we get a palindrome (134646431).

The spelling of 130521400 in words is "one hundred thirty million, five hundred twenty-one thousand, four hundred".