131288810 has 16 divisors (see below), whose sum is σ = 236486952. Its totient is φ = 52478400.

The previous prime is 131288783. The next prime is 131288831. The reversal of 131288810 is 18882131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 31348801 + 99940009 = 5599^2 + 9997^2 .

It is a super-2 number, since 2×131288810² = 34473503262432200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13640 + ... + 21180.

Almost surely, 2^131288810 is an apocalyptic number.

131288810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131288810 is a deficient number, since it is larger than the sum of its proper divisors (105198142).

131288810 is a wasteful number, since it uses less digits than its factorization.

131288810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9289.

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 131288810 is about 11458.1329194594. The cubic root of 131288810 is about 508.2482640648.

The spelling of 131288810 in words is "one hundred thirty-one million, two hundred eighty-eight thousand, eight hundred ten".