130731400 has 48 divisors (see below), whose sum is σ = 319957200. Its totient is φ = 49538880.

The previous prime is 130731389. The next prime is 130731401. The reversal of 130731400 is 4137031.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (130731401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13402 + ... + 21001.

It is an arithmetic number, because the mean of its divisors is an integer number (6665775).

Almost surely, 2^130731400 is an apocalyptic number.

130731400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130731400 is an abundant number, since it is smaller than the sum of its proper divisors (189225800).

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

130731400 is a wasteful number, since it uses less digits than its factorization.

130731400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34438 (or 34429 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 130731400 is about 11433.7832758890. The cubic root of 130731400 is about 507.5279575626.

Adding to 130731400 its reverse (4137031), we get a palindrome (134868431).

It can be divided in two parts, 130731 and 400, that added together give a palindrome (131131).

The spelling of 130731400 in words is "one hundred thirty million, seven hundred thirty-one thousand, four hundred".