131793906 has 8 divisors (see below), whose sum is σ = 263587824. Its totient is φ = 43931300.

The previous prime is 131793833. The next prime is 131793913. The reversal of 131793906 is 609397131.

131793906 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

131793906 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10982820 + ... + 10982831.

It is an arithmetic number, because the mean of its divisors is an integer number (32948478).

Almost surely, 2^131793906 is an apocalyptic number.

131793906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131793906 is a wasteful number, since it uses less digits than its factorization.

131793906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21965656.

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 131793906 is about 11480.1526993329. The cubic root of 131793906 is about 508.8992097564.

The spelling of 131793906 in words is "one hundred thirty-one million, seven hundred ninety-three thousand, nine hundred six".