131894312 has 16 divisors (see below), whose sum is σ = 269784000. Its totient is φ = 59951920.

The previous prime is 131894309. The next prime is 131894327. The reversal of 131894312 is 213498131.

It is a super-2 number, since 2×131894312² = 34792219075906688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749312 + ... + 749487.

It is an arithmetic number, because the mean of its divisors is an integer number (16861500).

Almost surely, 2^131894312 is an apocalyptic number.

It is an amenable number.

131894312 is an abundant number, since it is smaller than the sum of its proper divisors (137889688).

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

131894312 is a wasteful number, since it uses less digits than its factorization.

131894312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498816 (or 1498812 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 131894312 is about 11484.5248922191. The cubic root of 131894312 is about 509.0284103780.

The spelling of 131894312 in words is "one hundred thirty-one million, eight hundred ninety-four thousand, three hundred twelve".