131408210 has 8 divisors (see below), whose sum is σ = 236534796. Its totient is φ = 52563280.

The previous prime is 131408209. The next prime is 131408231. The reversal of 131408210 is 12804131.

It can be written as a sum of positive squares in 2 ways, for example, as 118570321 + 12837889 = 10889^2 + 3583^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 6570401 + ... + 6570420.

Almost surely, 2^131408210 is an apocalyptic number.

131408210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131408210 is a deficient number, since it is larger than the sum of its proper divisors (105126586).

131408210 is a wasteful number, since it uses less digits than its factorization.

131408210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13140828.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 131408210 is about 11463.3420083325. The cubic root of 131408210 is about 508.4022920573.

The spelling of 131408210 in words is "one hundred thirty-one million, four hundred eight thousand, two hundred ten".