131663210 has 16 divisors (see below), whose sum is σ = 270850176. Its totient is φ = 45141648.

The previous prime is 131663167. The next prime is 131663221. The reversal of 131663210 is 12366131.

It is a happy number.

131663210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 940382 + ... + 940521.

It is an arithmetic number, because the mean of its divisors is an integer number (16928136).

Almost surely, 2^131663210 is an apocalyptic number.

131663210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131663210 is an abundant number, since it is smaller than the sum of its proper divisors (139186966).

131663210 is a wasteful number, since it uses less digits than its factorization.

131663210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880917.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 131663210 is about 11474.4590286427. The cubic root of 131663210 is about 508.7309341739.

The spelling of 131663210 in words is "one hundred thirty-one million, six hundred sixty-three thousand, two hundred ten".