130231400 has 72 divisors (see below), whose sum is σ = 327956130. Its totient is φ = 48072960.

The previous prime is 130231397. The next prime is 130231411. The reversal of 130231400 is 4132031.

It can be written as a sum of positive squares in 9 ways, for example, as 5373124 + 124858276 = 2318^2 + 11174^2 .

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 31874 + ... + 35726.

Almost surely, 2^130231400 is an apocalyptic number.

130231400 is a gapful number since it is divisible by the number (10) 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 130231400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163978065).

130231400 is an abundant number, since it is smaller than the sum of its proper divisors (197724730).

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

130231400 is a wasteful number, since it uses less digits than its factorization.

130231400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3895 (or 3873 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 130231400 is about 11411.8973006245. The cubic root of 130231400 is about 506.8800943708.

Adding to 130231400 its reverse (4132031), we get a palindrome (134363431).

The spelling of 130231400 in words is "one hundred thirty million, two hundred thirty-one thousand, four hundred".