131130340 has 24 divisors (see below), whose sum is σ = 300408192. Its totient is φ = 47683680.

The previous prime is 131130317. The next prime is 131130347. The reversal of 131130340 is 43031131.

131130340 = 1517² + 1518² + ... + 1571².

It is not an unprimeable number, because it can be changed into a prime (131130347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297804 + ... + 298243.

It is an arithmetic number, because the mean of its divisors is an integer number (12517008).

Almost surely, 2^131130340 is an apocalyptic number.

131130340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131130340 is an abundant number, since it is smaller than the sum of its proper divisors (169277852).

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

131130340 is a wasteful number, since it uses less digits than its factorization.

131130340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596067 (or 596065 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131130340 is about 11451.2156559904. The cubic root of 131130340 is about 508.0436908296.

Adding to 131130340 its reverse (43031131), we get a palindrome (174161471).

The spelling of 131130340 in words is "one hundred thirty-one million, one hundred thirty thousand, three hundred forty".