131630906 has 32 divisors (see below), whose sum is σ = 222393600. Its totient is φ = 57919680.

The previous prime is 131630887. The next prime is 131630927. The reversal of 131630906 is 609036131.

131630906 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91400 + ... + 92828.

It is an arithmetic number, because the mean of its divisors is an integer number (6949800).

Almost surely, 2^131630906 is an apocalyptic number.

131630906 is a deficient number, since it is larger than the sum of its proper divisors (90762694).

131630906 is a wasteful number, since it uses less digits than its factorization.

131630906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 131630906 is about 11473.0512942286. The cubic root of 131630906 is about 508.6893245035.

The spelling of 131630906 in words is "one hundred thirty-one million, six hundred thirty thousand, nine hundred six".