131906694 has 8 divisors (see below), whose sum is σ = 263813400. Its totient is φ = 43968896.

The previous prime is 131906639. The next prime is 131906699. The reversal of 131906694 is 496609131.

131906694 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.

131906694 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131906699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10992219 + ... + 10992230.

It is an arithmetic number, because the mean of its divisors is an integer number (32976675).

Almost surely, 2^131906694 is an apocalyptic number.

131906694 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.

131906694 is a wasteful number, since it uses less digits than its factorization.

131906694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21984454.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 131906694 is about 11485.0639528041. The cubic root of 131906694 is about 509.0443387691.

The spelling of 131906694 in words is "one hundred thirty-one million, nine hundred six thousand, six hundred ninety-four".