131315210 has 64 divisors (see below), whose sum is σ = 265192704. Its totient is φ = 46502400.

The previous prime is 131315207. The next prime is 131315221. The reversal of 131315210 is 12513131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 378257 + ... + 378603.

It is an arithmetic number, because the mean of its divisors is an integer number (4143636).

Almost surely, 2^131315210 is an apocalyptic number.

131315210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131315210 is an abundant number, since it is smaller than the sum of its proper divisors (133877494).

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

131315210 is a wasteful number, since it uses less digits than its factorization.

131315210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 131315210 is about 11459.2848817018. The cubic root of 131315210 is about 508.2823285443.

Adding to 131315210 its reverse (12513131), we get a palindrome (143828341).

The spelling of 131315210 in words is "one hundred thirty-one million, three hundred fifteen thousand, two hundred ten".